"%" sign not supported (and probably other URL special chars)

[Robotto]

The String concatenation used here

Pushover/Pushover.cpp

Line 53 in 48d0ba5

String post = String("token=")+_token+"&user="+_user+"&title="+_title+"&message="+_message+"&device="+_device+"&url="+_url+"&url_title="+_url_title+"&priority="+_priority+"&retry="+_retry+"&expire="+_expire+"&sound="+_sound;

Does not escape special chars... The best fix is probably to just notify the user in the README rather than implement a parser...

[Robotto]

Doesn't Work:
po.setMessage("BATT @" + String(percentage) + "% (" + String(voltage) + "V)"); //Doesn't work

Works:
po.setMessage("BATT @" + String(percentage) + "%25 (" + String(voltage) + "V)"); //%25 is % in URL encode