fix #2
modify hint message
Merge pull request #5 from xiechao06/issue2

Issue2
Merge remote-tracking branch 'origin/master' into issue143

Conflicts:
	src/com/jinheyu/lite_mms/CreateDeliveryTaskActivity.java
	src/com/jinheyu/lite_mms/LoaderMainActivity.java
	src/com/jinheyu/lite_mms/netutils/WebService.java
fix xiechao06/lite-mms#143
refactor
fix xiechao06/lite-mms#143
add processed_weight and processed_cnt
fix xiechao06/lite-mms#143
cache image with disk