[SublimeVimFiler] Add the Function of Sort by Specified Sort Kind.

- sort by update time.
- sort by directory and file name.
- sort by direcory.
- sort reverse.
Merge branch 'AddSwitchSortFunction' into devel
[SublimeVimFiler] Add the Function Mark Directory and File.

- Copy Makred Directory and File to CurrentDirectory.
- Delete Marked Directory and File.
Merge branch 'AddMerkDirectoryAndFileFunction' into devel
[SublimeVimFiler] Refactoring.

- move sort method to Utility Class.
[SublimeVimFiler] Modify Comment.
Merge branch 'Refactoring' into devel
[SublimeVimFiler] Modify the Function of Grep File and Directory.

- output grep result to scratch buffer.
- open file and directory from grep result(scratch buffer).
Merge branch 'ModifyGrepFileFunction' into devel
[SublimeVimFiler] Add the Function Use Single VimFiler View.

- when vim filer view is already exist, use it.
Merge branch 'SingleVimFiler' into devel
[SublimeVimFiler] Modify README.md
Merge branch 'devel'