Merge branch 'hotfix/3234'

Close #3234
Merge branch 'hotfix/3234' into develop

Forward port #3234
Merge branch '#3222' of git://github.com/robertboloc/zf2 into hotfix/3236
Merge branch 'hotfix/3236'

Close #3236
Merge branch 'hotfix/3236' into develop

Forward port #3236
Merge branch 'master' of git://github.com/richardjennings/zf2 into hotfix/3237
Merge branch 'hotfix/3237'

Close #3237
Merge branch 'hotfix/3237' into develop

Forward port #3237
Merge branch 'master' of git://github.com/neilime/zf2 into hotfix/3238
[#3238] CS fixes

- eof_ending
Merge branch 'hotfix/3238'

Close #3238
Merge branch 'hotfix/3238' into develop

Forward port #3238
Merge remote-tracking branch 'upstream/develop' into develop
Fix namespace with new sendresponselistener
Merge branch 'hotfix/3247' into develop

Close #3247
Fix (un)subscribe operation. The http (un)subscription request was never sent to the hub
FileInputTest mock fix; File PRG fix
File Filter unit test coverage for FILES array
fixed license tag generation
Merge branch 'hotfix/zend-form-allow-input-filter-preference' of git://github.com/mwillbanks/zf2 into feature/form-merge-specs