Use neobundle to manage all plugins

Now repo is in intermediate state, it's not really usable, some features are still not workable.

Signed-off-by: apporc <appleorchard2000@gmail.com>
Replace minibufexplorer/vim-powerline with vim-airline

Minibufexplorer and vim-powerline are totally gone now.
I find vim-airline is good, and can undertake both tabline and satus line.

Signed-off-by: apporc <appleorchard2000@gmail.com>
Replace conque_term with vimshell.

It's comfortable to use vimshell,
at least when you type exit, the vimshell will disappear gracefully.

Signed-off-by: apporc <appleorchard2000@gmail.com>
Ignore bundle files and fix trailling error.

Signed-off-by: apporc <appleorchard2000@gmail.com>
Change code structure

Signed-off-by: apporc <appleorchard2000@gmail.com>