Edited gitignore to ignore all 'formsys/test*' files / directories.

Note:
 - this will create a merge conflict when merging with 'caching'!
disabled classLoader log messages
Implemented Language Selection

Also:
 - moved language responsibility to Form

Todo:
 - adapt processor for language selection
Added Separate Template for Language option row (forgotten in last commit)
Adjusted processor for new language system

also:
 - removed deprecated method in formsys/class/lang/language_helper.php
Merge branch 'master' into caching

Conflicts:
	.gitignore