added initial profiles switch implementation

when left clicking on the systray a list of profiles is shown, clicking
on a profile a "activateProfile" is called and an action to create a new
profile is displayed.
This is handled through a QMenu and lambda functions to pass additional
paramenters to the receiver, also interesting are the functions:
            self.menuProfiles.activateWindow()
            self.menuProfiles.popup(QtGui.QCursor.pos())