add function of rename
fix some rename bugs
fix rename bugs || add self-defined focus and multi-select
fix some bugs of multi-select
merge 'dentry to master'
Merge branch 'master' of github.com:IbpTeam/demo-webde
Merge pull request #36 from CannedFish/master

Add 'rename' function || add multi-select  --> Tanking-1988