Deep update of all Vim plugins.

* minibufexpl
* molokai
* python-mode
* surround
* tagbar
* tlib_vim
* vim-puppet
* vim-snipmate
* vim-snippets
Revert admonitions.
Add new theme: Tomorrow-Night.

Source: https://github.com/chriskempson/tomorrow-theme
Relocate vim powerline cache to $HOME.
Fix some perms from rules.
Totally manage /etc/vim by this package.

Install in /usr/share/system-vim-config so that files are not marked as
conffiles.
Make a symlink in /etc/vim and /usr/share/system-vim-config as target.
Add Debian global config file to this package.
This package now replaces some files provided by others.
Update changelog for 1.2.0 release.
New plugin CtrlP (the Fuzzy Finder).

Checkout https://github.com/kien/ctrlp.vim.
NerdTree will no set CWD to the root directory.
Update changelog for 1.2.1 release.
Disable autochdir.
Remove obsolete config options for MBE.
Update changelog for 1.2.2 release.
Remove plugin minibufexpl.

Causing too much problem and now we have CtrlP.
New plugin bufexplorer (replace MiniBuffExplorer).
F11 brings buffer explorer.
Update changelog for 1.2.3 release.
Updated to latest vim-nagios release.