diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/HardwareSerial.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/HardwareSerial.h
index 0556be8..ecba701 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/HardwareSerial.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/HardwareSerial.h
@@ -21,9 +21,9 @@
 
 #include <inttypes.h>
 
-#include "WStream.h"
+#include "Stream.h"
 
-class HardwareSerial : public WStream
+class HardwareSerial : public Stream
 {
 public:
     void begin( const uint32_t dwBaudRate );
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.cpp b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.cpp
similarity index 89%
rename from arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.cpp
rename to arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.cpp
index 815b75f..6c58c56 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.cpp
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.cpp
@@ -22,13 +22,13 @@
  */
 
 #include "Arduino.h"
-#include "WStream.h"
+#include "Stream.h"
 
 #define PARSE_TIMEOUT 1000  // default number of milli-seconds to wait
 #define NO_SKIP_CHAR  1  // a magic char not found in a valid ASCII numeric field
 
 // private method to read stream with timeout
-int WStream::timedRead()
+int Stream::timedRead()
 {
   int c;
   _startMillis = millis();
@@ -40,7 +40,7 @@ int WStream::timedRead()
 }
 
 // private method to peek stream with timeout
-int WStream::timedPeek()
+int Stream::timedPeek()
 {
   int c;
   _startMillis = millis();
@@ -53,7 +53,7 @@ int WStream::timedPeek()
 
 // returns peek of the next digit in the stream or -1 if timeout
 // discards non-numeric characters
-int WStream::peekNextDigit()
+int Stream::peekNextDigit()
 {
   int c;
   while (1) {
@@ -68,26 +68,26 @@ int WStream::peekNextDigit()
 // Public Methods
 //////////////////////////////////////////////////////////////
 
-void WStream::setTimeout(unsigned long timeout)  // sets the maximum number of milliseconds to wait
+void Stream::setTimeout(unsigned long timeout)  // sets the maximum number of milliseconds to wait
 {
   _timeout = timeout;
 }
 
  // find returns true if the target string is found
-bool  WStream::find(char *target)
+bool  Stream::find(char *target)
 {
   return findUntil(target, NULL);
 }
 
 // reads data from the stream until the target string of given length is found
 // returns true if target string is found, false if timed out
-bool WStream::find(char *target, size_t length)
+bool Stream::find(char *target, size_t length)
 {
   return findUntil(target, length, NULL, 0);
 }
 
 // as find but search ends if the terminator string is found
-bool  WStream::findUntil(char *target, char *terminator)
+bool  Stream::findUntil(char *target, char *terminator)
 {
   return findUntil(target, strlen(target), terminator, strlen(terminator));
 }
@@ -95,7 +95,7 @@ bool  WStream::findUntil(char *target, char *terminator)
 // reads data from the stream until the target string of the given length is found
 // search terminated if the terminator string is found
 // returns true if target string is found, false if terminated or timed out
-bool WStream::findUntil(char *target, size_t targetLen, char *terminator, size_t termLen)
+bool Stream::findUntil(char *target, size_t targetLen, char *terminator, size_t termLen)
 {
   size_t index = 0;  // maximum target string length is 64k bytes!
   size_t termIndex = 0;
@@ -129,14 +129,14 @@ bool WStream::findUntil(char *target, size_t targetLen, char *terminator, size_t
 // returns the first valid (long) integer value from the current position.
 // initial characters that are not digits (or the minus sign) are skipped
 // function is terminated by the first character that is not a digit.
-long WStream::parseInt()
+long Stream::parseInt()
 {
   return parseInt(NO_SKIP_CHAR); // terminate on first non-digit character (or timeout)
 }
 
 // as above but a given skipChar is ignored
 // this allows format characters (typically commas) in values to be ignored
-long WStream::parseInt(char skipChar)
+long Stream::parseInt(char skipChar)
 {
   boolean isNegative = false;
   long value = 0;
@@ -166,14 +166,14 @@ long WStream::parseInt(char skipChar)
 
 
 // as parseInt but returns a floating point value
-float WStream::parseFloat()
+float Stream::parseFloat()
 {
   return parseFloat(NO_SKIP_CHAR);
 }
 
 // as above but the given skipChar is ignored
 // this allows format characters (typically commas) in values to be ignored
-float WStream::parseFloat(char skipChar){
+float Stream::parseFloat(char skipChar){
   boolean isNegative = false;
   boolean isFraction = false;
   long value = 0;
@@ -215,7 +215,7 @@ float WStream::parseFloat(char skipChar){
 // returns the number of characters placed in the buffer
 // the buffer is NOT null terminated.
 //
-size_t WStream::readBytes(char *buffer, size_t length)
+size_t Stream::readBytes(char *buffer, size_t length)
 {
   size_t count = 0;
   while (count < length) {
@@ -232,7 +232,7 @@ size_t WStream::readBytes(char *buffer, size_t length)
 // terminates if length characters have been read, timeout, or if the terminator character  detected
 // returns the number of characters placed in the buffer (0 means no valid data found)
 
-size_t WStream::readBytesUntil(char terminator, char *buffer, size_t length)
+size_t Stream::readBytesUntil(char terminator, char *buffer, size_t length)
 {
   if (length < 1) return 0;
   size_t index = 0;
@@ -245,7 +245,7 @@ size_t WStream::readBytesUntil(char terminator, char *buffer, size_t length)
   return index; // return number of characters, not including null terminator
 }
 
-String WStream::readString()
+String Stream::readString()
 {
   String ret;
   int c = timedRead();
@@ -257,7 +257,7 @@ String WStream::readString()
   return ret;
 }
 
-String WStream::readStringUntil(char terminator)
+String Stream::readStringUntil(char terminator)
 {
   String ret;
   int c = timedRead();
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.h
similarity index 97%
rename from arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.h
rename to arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.h
index 81ce6e6..163ae03 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/WStream.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/Stream.h
@@ -20,8 +20,8 @@
   parsing functions based on TextFinder library by Michael Margolis
 */
 
-#ifndef WStream_h
-#define WStream_h
+#ifndef Stream_h
+#define Stream_h
 
 #include <inttypes.h>
 #include "Print.h"
@@ -36,7 +36,7 @@
 readBytesBetween( pre_string, terminator, buffer, length)
 */
 
-class WStream : public Print
+class Stream : public Print
 {
   private:
     unsigned long _timeout;      	// number of milliseconds to wait for the next char before aborting timed read
@@ -51,7 +51,7 @@ class WStream : public Print
     virtual int peek() = 0;
     virtual void flush() = 0;
 
-    WStream() {_timeout=1000;}
+    Stream() {_timeout=1000;}
 
 // parsing methods
 
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Stream.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/MStream.h
similarity index 91%
rename from arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Stream.h
rename to arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/MStream.h
index ca5dfe6..4697b46 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Stream.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/MStream.h
@@ -26,11 +26,11 @@ extern void mbed_set_unbuffered_stream(FILE *_file);
 extern int mbed_getc(FILE *_file);
 extern char* mbed_gets(char *s, int size, FILE *_file);
 
-class Stream : public FileLike {
+class MStream : public FileLike {
 
 public:
-    Stream(const char *name=NULL);
-    virtual ~Stream();
+    MStream(const char *name=NULL);
+    virtual ~MStream();
 
     int putc(int c);
     int puts(const char *s);
@@ -59,8 +59,8 @@ class Stream : public FileLike {
 
     /* disallow copy constructor and assignment operators */
 private:
-    Stream(const Stream&);
-    Stream & operator = (const Stream&);
+    MStream(const MStream&);
+    MStream & operator = (const MStream&);
 };
 
 } // namespace mbed
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Serial.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Serial.h
index aa06540..a3278b6 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Serial.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/Serial.h
@@ -20,7 +20,7 @@
 
 #if DEVICE_SERIAL
 
-#include "Stream.h"
+#include "MStream.h"
 #include "SerialBase.h"
 #include "serial_api.h"
 
@@ -44,7 +44,7 @@ namespace mbed {
  * }
  * @endcode
  */
-class Serial : public SerialBase, public Stream {
+class Serial : public SerialBase, public MStream {
 
 public:
 #if DEVICE_SERIAL_ASYNCH
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/SerialBase.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/SerialBase.h
index 51aeb33..e7daa7b 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/SerialBase.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/api/SerialBase.h
@@ -20,7 +20,7 @@
 
 #if DEVICE_SERIAL
 
-#include "Stream.h"
+#include "MStream.h"
 #include "FunctionPointer.h"
 #include "serial_api.h"
 
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Stream.cpp b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/MStream.cpp
similarity index 74%
rename from arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Stream.cpp
rename to arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/MStream.cpp
index 2b3105f..3a2afbf 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Stream.cpp
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/MStream.cpp
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include "Stream.h"
+#include "MStream.h"
 
 namespace mbed {
 
-Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
+MStream::MStream(const char *name) : FileLike(name), _file(NULL) {
     /* open ourselves */
     char buf[12]; /* :0x12345678 + null byte */
     std::sprintf(buf, ":%p", this);
@@ -25,32 +25,32 @@ Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
     mbed_set_unbuffered_stream(_file);
 }
 
-Stream::~Stream() {
+MStream::~MStream() {
     fclose(_file);
 }
 
-int Stream::putc(int c) {
+int MStream::putc(int c) {
     fflush(_file);
     return std::fputc(c, _file);
 }
-int Stream::puts(const char *s) {
+int MStream::puts(const char *s) {
     fflush(_file);
     return std::fputs(s, _file);
 }
-int Stream::getc() {
+int MStream::getc() {
     fflush(_file);
     return mbed_getc(_file);   
 }
-char* Stream::gets(char *s, int size) {
+char* MStream::gets(char *s, int size) {
     fflush(_file);
     return mbed_gets(s,size,_file);
 }
 
-int Stream::close() {
+int MStream::close() {
     return 0;
 }
 
-ssize_t Stream::write(const void* buffer, size_t length) {
+ssize_t MStream::write(const void* buffer, size_t length) {
     const char* ptr = (const char*)buffer;
     const char* end = ptr + length;
     while (ptr != end) {
@@ -61,7 +61,7 @@ ssize_t Stream::write(const void* buffer, size_t length) {
     return ptr - (const char*)buffer;
 }
 
-ssize_t Stream::read(void* buffer, size_t length) {
+ssize_t MStream::read(void* buffer, size_t length) {
     char* ptr = (char*)buffer;
     char* end = ptr + length;
     while (ptr != end) {
@@ -72,23 +72,23 @@ ssize_t Stream::read(void* buffer, size_t length) {
     return ptr - (const char*)buffer;
 }
 
-off_t Stream::lseek(off_t offset, int whence) {
+off_t MStream::lseek(off_t offset, int whence) {
     return 0;
 }
 
-int Stream::isatty() {
+int MStream::isatty() {
     return 0;
 }
 
-int Stream::fsync() {
+int MStream::fsync() {
     return 0;
 }
 
-off_t Stream::flen() {
+off_t MStream::flen() {
     return 0;
 }
 
-int Stream::printf(const char* format, ...) {
+int MStream::printf(const char* format, ...) {
     std::va_list arg;
     va_start(arg, format);
     fflush(_file);
@@ -97,7 +97,7 @@ int Stream::printf(const char* format, ...) {
     return r;
 }
 
-int Stream::scanf(const char* format, ...) {
+int MStream::scanf(const char* format, ...) {
     std::va_list arg;
     va_start(arg, format);
     fflush(_file);
@@ -106,13 +106,13 @@ int Stream::scanf(const char* format, ...) {
     return r;
 }
 
-int Stream::vprintf(const char* format, std::va_list args) {
+int MStream::vprintf(const char* format, std::va_list args) {
     fflush(_file);
     int r = vfprintf(_file, format, args);
     return r;
 }
 
-int Stream::vscanf(const char* format, std::va_list args) {
+int MStream::vscanf(const char* format, std::va_list args) {
     fflush(_file);
     int r = vfscanf(_file, format, args);
     return r;
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Serial.cpp b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Serial.cpp
index 602c87a..66d15bf 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Serial.cpp
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/cores/RBL_nRF51822/mbed/common/Serial.cpp
@@ -20,7 +20,7 @@
 
 namespace mbed {
 
-Serial::Serial(PinName tx, PinName rx, const char *name) : SerialBase(tx, rx), Stream(name) {
+Serial::Serial(PinName tx, PinName rx, const char *name) : SerialBase(tx, rx), MStream(name) {
 }
 
 int Serial::_getc() {
diff --git a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/libraries/Wire/Wire.h b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/libraries/Wire/Wire.h
index a65072f..176801e 100644
--- a/arduino-1.6.x/hardware/RBL/RBL_nRF51822/libraries/Wire/Wire.h
+++ b/arduino-1.6.x/hardware/RBL/RBL_nRF51822/libraries/Wire/Wire.h
@@ -30,7 +30,7 @@
 #ifndef _WIRE_H_
 #define _WIRE_H_
 
-#include "WStream.h"
+#include "Stream.h"
 #include "Arduino.h"
 
 
@@ -41,7 +41,7 @@
 #define TWI_FREQUENCY_400K  400000
 
 
-class TwoWire : public WStream
+class TwoWire : public Stream
 {
 public :
     enum TwoWireStatus {