In Main Class :

+ added verification if user has previously authenticated the application or not with his Flickr account to load the proper main window

In Main Window :
- removed the hereinabove verification because it led to a NullPointerException
* changed to improper instantation
Merge branch 'develop' of github.com:batspirit/Imagine into develop

Conflicts:
	src/org/imagine/screensframework/MainWindowController.java
	src/org/imagine/supportingfiles/ImagineMainClass.java