Merge pull request #2 from feromakovi/master

Implement switching branch method
Format some code
Bump feature and plugin versions
Fixed return types of Listener and Resource preferences
Format some code
Implement switching branch method
Merge branch 'master' of git://github.com/perconik/perconik

Conflicts:
	com.gratex.perconik.tag/META-INF/MANIFEST.MF
	sk.stuba.fiit.perconik.eclipse/src/sk/stuba/fiit/perconik/eclipse/jgit/lib/GitRepositories.java
Removed duplicate method declaration
Inicialize Programmer Proportion eclipse plug-in
Merge branch 'develop' of github.com:feromakovi/perconik into develop