Fix PHP Notice in Translator class
Unit test for Translator with non-existant locale
Fix PHP Notice in Translator class
Fix PHP Notice in Translator class
Fix for invalid json in composer for Zend\Math
Merge branch 'hotfix/4037'

Close #4037
Merge branch 'patch-2' of https://github.com/BinaryKitten/zf2 into hotfix/4031
Merge branch 'hotfix/4031'

Close #4031
Merge branch 'hotfix/4031' into develop

Close #4031
Merge branch 'bugfix/translator' of git://github.com/xoob/zf2 into hotfix/4013
Merge branch 'hotfix/4013'

Close #4013
Merge branch 'hotfix/4013' into develop

Forward port #4013
Implement better text domain merging support
Merge branch 'hotfix/4053' into develop
Close #4053

* hotfix/4053:
  Implement better text domain merging support