git clone vundle时使用https协议

`git clone http://github.com/gmarik/vundle.git` 时一直卡在 `Initialized empty Git repository in ...` 这里，改成https协议后可以正常完成，另外也可与前面的 `git clone https://github.com/ma6174/vim.git` 风格保持一致。
Merge pull request #15 from leizongmin/patch-1

git clone vundle时使用https协议
apt-get install添加python-dev和git

个别基于Ubuntu的发行版，缺python.h和git，需要安装python-dev和git。（我的是Elementary OS）
Merge pull request #20 from tinyeyeser/master

在apt-get install添加python-dev和git
As Mac is case-sensitive,First remove the files(Actually they are the
                                                same one as the OS X
                                                treats)
Mac is case-insensitive by default. Rename the original Slate.vim into
Slate0.vim
Support HomeBrew on Mac OS
Merge pull request #21 from androidyue/master

bug修复及支持Mac系统homebrew包管理安装
Update setup.sh

http -> https at github
Fix twisted installation Error in Mac caused by Xcode Version limit
Merge pull request #28 from androidyue/master

Fix twisted installation Error in Mac caused by Xcode Version limit