start camera upload service when OS boot

when camera upload service is on, it automatically running in background.
when user restart OS, the service should start itself as well if the "Turn On Service Button" is checked.
start camera upload service when OS boot

now it can properly start camera upload service when OS boot
change icons

change to use darker icons,
includes several types of file icons and folder icon.
stop copying files into sd-card

whenever user upload photos, it automatically copy photos to local sd-card (cache).
if one device has hundreds of photos, without any doubt, it will cache too much data and cacuse OOM.
stop copying files into sd-card

only show upload service started toast once.
BrowserActivity will flash then disapear whenever resume the app which is weired.
stop copying files into sd-card when uploading photos

explicitly start camera upload service when resume the app.
close UploadTaskActivity when its adapter is empty, and navigare to BrowserActivity.
add new icons, includes repo, repo_encrypted, repo_readonly.
translate into Chinese

gesture lock doesn`t function when use multitasking window to resume the app.
code cleanup
change to use smaller library icon
change icons of fresh button, upload button and droplist menu
change icons
Merge pull request #106 from Logan676/lg2

optimize camera upload service to keep itself running and responding as long as possible