save

Signed-off-by: wenpincui <wenpincui224@gmail.com>
save.
Add painter scratch class for draw
Merge branch 'master' of https://github.com/elsonLee/Co-Reading

Conflicts:
	Co-Reading/src/com/example/co_reading/FragmentTab.java
	Co-Reading/src/com/example/co_reading/MainActivity.java
	Co-Reading/src/com/example/co_reading/TabListener.java