Import wizard steps package refactoring
Import wizard moved wizard classes to main package.
Moved utility UI classes to util package.
Renamed package view.progressbar in simple progressbar
Eclipse project settings
Import wizard code cleaning:
- renamed wizards steps classes using step instead of form
- removed unused import
- added some javadoc to classes
Import Wizard refactoring: 
- ProgressBarTracker* renamed in ProgressTracker*
- FromWrapper* renamed in WizardStepWrapper*