wip: refactoring ArrayTranlsator to ResourceTranslator which is really the same as the symfony translator and getting stuck here
add alternative syntax to the translation builder
add an resourcetranslator interface which allows to add resources to the translator
Merge branch 'wip'

Conflicts:
	lib/Webforge/Translation/ResourceTranslator.php
cleanup names
add addResource to Translator and a test for loading a PhpFile
add addResourceDirectory to Translator and test for loading phpFiles from a directory