New features
[cf71a96] Move PHPUnit tests folder into the root folder (@bocharsky-bw)
[61413a1] Use locked PHPUnit from dependencies (@bocharsky-bw)
[89352e8] Ensure default Post sort order shows newer Posts first (@simensen)
[6a309b7] Updated to Symfony 3.1.5 (@javiereguiluz)
Bug fixes
[b5867bd][c4b2151] Accessibility fixes (@mik-laj)
[adfe45d] Updated Ukrainian and Russian translations (@bocharsky-bw)
[a5643ca] Fix Deploying to the Heroku (@bocharsky-bw)
[27af27f] Fixed the way we get the Twig template source (@javiereguiluz)
[eaf516c] Updated Slovenian translation (@peterkokot)
[503d8f7] Use .xlf extension instead of .xliff one for translations (@bocharsky-bw)