Merge branch 'develop'

Conflicts:
	composer.json

Merge branch 'develop'

Conflicts:
	composer.json

Fix composer version

Merge branch 'develop'

Merge branch 'develop'

Fixed Poll to avoid multiple votes from the same IP

LanguageCollection now supports multiples xmlnukedata folder.

Adjusts in Run XMLNuke modules from command line.

Release 3.51

Release 3.50