modified:   AndroidManifest.xml
	modified:   res/values/attrs.xml
	deleted:    src/com/xiaopiao/password/ui/MainActivity.java
	modified:   src/com/xiaopiao/password/util/ActivityUtil.java
	res/drawable-hdpi/btn_code_lock_default.png
	res/drawable-hdpi/btn_code_lock_touched.png
	res/drawable-hdpi/indicator_code_lock_drag_direction_green_up.png
	res/drawable-hdpi/indicator_code_lock_drag_direction_red_up.png
	res/drawable-hdpi/indicator_code_lock_point_area_default.png
	res/drawable-hdpi/indicator_code_lock_point_area_green.png
	res/drawable-hdpi/indicator_code_lock_point_area_red.png
	res/layout/app_login_layout.xml
	src/com/xiaopiao/password/AppApplication.java
	src/com/xiaopiao/password/storage/SharePrefCache.java
	src/com/xiaopiao/password/ui/AppLoginActivity.java
	src/com/xiaopiao/password/ui/view/LockPatternView.java
	src/com/xiaopiao/password/util/LockPatternUtils.java
	src/com/xiaopiao/password/util/SecretUtil.java
add the login activity