Implemented SettingsHandler, integrated Toolbar part (set framework
path) to change framework path persistently.

Please check out SettingsHandler for including new settings to store
persistently.

Settings are gonna be initialized when GUI starts
Merge branch 'master' of https://github.com/getthegroove/anise_gui

Conflicts:
	src_gui/GUI.pro
	src_gui/mainwindow.cpp