Moving isPM check to the language object so it can be overwritten by different languages
Merge branch 'develop' into feature/ampm

* develop: (21 commits)
  Fixing tests for #780
  More tests for #788
  Using first valid format when parsing multiple formats - #653 #788
  Updating tests for #788
  fixing jshint error
  Use brackets to escape characters
  Add composer.json
  fix test and some translations
  Update it.js
  Fix escaping
  Update br.js
  Fixing indentation
  Fixing indentation
  Fixing indentation
  Added mutations for years
  And more
  Update header
  More tests, more translations
  Updating header (comments)
  Updating months
  ...
Moving parse regex to language as well as isPM
Merge pull request #791 from timrwood/feature/ampm

Supporting A.M. and P.M. and moving isPM check to Language