Merge pull request #37 from heyongjian/master

huangming:merge the main branch to native branch.
Merge pull request #38 from heyongjian/master

huangming:merge the main branch to native branch.
Merge pull request #40 from heyongjian/master

huangming:merge the main branch to native branch.
Merge pull request #43 from heyongjian/master

huangming:merge the main branch to native branch.
huangming: put the backup and theme field in the assets.
Merge pull request #62 from whuthm/master

huangming:put the backup and theme field in the assets.