few fixes
added FileHelper Tests
Merge branch 'dev' of https://github.com/adudek/ic-depress into dev
Added Settings into NodeModel to transfer Settings about selected columns from Dialog;
Changed execute method - Now return selected columns Uppercased (temporary)
Merge branch 'dev' of https://github.com/adudek/ic-depress into dev

Conflicts:
	ic-depress-data-anonymisation/src/org/impressivecode/depress/data/anonymisation/AnonymisationNodeModel.java

-removed unuysed imports
testy jednostkowe dla properties validator