add SimplifiedGestureListView
adjust UI
remove settings btn on MainActivity
make the simplified gesture listview half screen height
refactory package name
disable divider of listview
set bg for right-top imageview of simplified gesture listview items
update UnlockBar onDraw()
adjust UI of lock screen clock text
remove unused res
add mask layer in lock screen to notify user how to start app from SplifiedGestureListView
only long pressing triggers the mask layer; add SimpLIstViewItem
SimplifiedGestureListView item: long click prompts for a count down clock, continue pressing for 2s to start the activity
add anim for starting from gesture list view
vibrate when a target activity is being launched
update UnlockBar UI
make outmost FrameLayout exceeds screen height at the bottom side
UnlockBar draws an intact circle
double-click to start the relevant app in SimplifiedGestureListView
remove unused code