Removes SWTBot dependecies for wait method
Adds possibility to not throw Exception in case
Wait was not successful
WorkbenchPart is implementing ReferencedComposite
Implements Combo without SWTBot
Supports Package Explorer multi selection
RadioButton implementation without SWTBot
Build properties updated to avoid warinings after import
Implements CTabItem without SWTBot
Fixes expanding of Tree Item when its children are created dynamically
Adds test for it
Replaces Thread.sleep() with AbstractWait.sleep() where appropriate
 #170 Move tycho to 0.18.0
Resolving issue #174
Combo invokes Selection event when selection is changed
Adds Combo tests