Merge branch 'dev' of https://github.com/adudek/ic-depress into dev

Conflicts:
	ic-depress-data-anonymisation/src/org/impressivecode/depress/data/anonymisation/AnonymisationNodeModelTest.java
added class AnonymisationFileChooser;
Implemented ClickEvent on button "Add new and load";
Added new Constant - KEY_LENGTH = 128;
Merge branch 'dev' of https://github.com/adudek/ic-depress into dev
Added class - PropertiesValidator, FileHelper;
Use PropertiesValidator in NodeModel;
Implemented Clear button ClickEvent;
better codeFormat;
Added class - PropertiesValidator, FileHelper;
Use PropertiesValidator in NodeModel;
Implemented Clear button ClickEvent;
Transfer Cryptographyutility to Object package;
better codeFormat;
Merge branch 'dev' of https://github.com/MarBog/ic-depress into dev