Move preferences for user credentials to core plugin and delete
preferences plugin
Display active user in application's title bar
initial
Add preferences plugin to parent POM
Change version to 0.1.4.qualifier
Add preferences plug-in to *.core.feature
Move preference-realting sources to new preferences plug-in
Delete faulty imports
Move preference-related extensions from *.core to *.core.preferences
Move options menu extension to *.core.preferences
Add CONFIGURATION scope to user credentials preferences and update
application title accordingly in *.core