add welcome,guide activity,app version detection,and swipe views in action bar with tab mode

1.add welcome activity when launched the app;
2.add guide activity launcher with pager views when the app run the
device for the first time;
3.add feature that gesture flinger at the last guide view pager enter
into home activity;
4.update only one main activty with action bar to fragment activity with
action bar and swiped view by fragment and pageview with action tab
mode.