Added option for skipping archetype test
Implemented capture screenshot on test failure

- feature is enabled by setting up property relativeScreenshotDirectory which point to directory where to store screenshots
- tests verify if screenshot is correctly created
Fix for multiplatform support - bcs. of WM is platform specific.
Fix compile time dependency bcs of platform WS specific.
Capture screenshot fixes:
- tycho support
- screenshots captured at the moment of failure, also in after and before
- fix default screenshots path
Update CaptureScreenshot.java
 Add support for expansion to UIFormSection fixes: #490
Fixed calling before classes
Fixed name of getItem method parameter

-it get item on the given index not row
DefaultCombo renamed to LabeledCombo and true DefaultCombo created (fixes #485)
Javadoc - modified, removed, added as it should be for jface plugin (fixes #465)
Fixed NPE when property was not defined
Fixed file separator for windows
fixed windows path parsing regex
Moved isVisible & isEnabled from lookup to handler. Fixes  #504
Updated matchers (renaming, documentation, refactoring) #482
typeText() method added to Text (fixes #169)
Fixed covering of original test failure cause by screenshot exceptions
Removed protected constructor.
Renamed classes in uiforms to use Eclipse names