Make the menu scrollable
Merge branch 'master' of https://github.com/ehe888/EXTJS-VENUS-FRAMEWORK
Add the sub menu click handler
Remove the useless Main view and Main Controller
Add pos.priceBook module
Add the customized header bar
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app.js
	app/controller/Main.js
	app/controller/Navigator.js
	app/view/ContentPanel.js
	app/view/Main.js
	app/view/Navigator.js
	app/view/Viewport.js
	data/navigation.json
	resources/css/venus-theme-gray-all.css