some fixes that would have otherwised caused just a white screen#3

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antonydandrea wants to merge 8 commits intooborseth:masterfrom

antonydandrea:master

Commits on Dec 22, 2015

some fixes that would have otherwised caused just a white screen. This works for me on media wiki 1.25
antonydandrea
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Commits on Oct 3, 2016

Added check if cache file exists if not then fetch the file from s3.
meetkelvincodes
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Commits on Oct 28, 2016

Merge pull request #1 from kelvinspencer/1.27.1-working
antonydandrea
authored

Commits on Mar 2, 2017

1.28 compatibility
antonydandrea
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