New backend() method in view API to access underlying implementation
Correct bug in plugin generator for workspace type
adds a vtkImageView3d as a variable of the medVtkViewBackend, corrects an error in implementation

Conflicts:
	src-plugins/variationalSegmentation/varSegToolBox.cpp
Fix a crash on selecting the Jet LUT
Fix mesh exporters
Merge pull request #119 from ocommowi/bug-correct-generator

Correct bug in plugin generator for workspace type
Merge pull request #117 from papadop/gcc_4_8_warnings

Silence some new gcc warnings.
Preliminary work towards a beautiful medInria (lol)
Add style sheet parser plus test
Set a new Style to medInria using qss
Add missing files
put a grey darker for the empty view container
Global reduction of the border-radius
improve aspect of the layout buutons
toolbox are darker
scroll bar are darker
harmonize pushButton and ComboBox with darker toolBox
correct padding for comboBox
stash
less contrast and slight modifications in qss