title: Vundle not authenticating github
body: <p>I have this on my <code>~/.vimrc</code>.</p>
  
  <pre><code>set nocompatible              " be iMproved, required
  filetype off                  " required
  
  set rtp+=~/.vim/bundle/Vundle.vim
  call vundle#begin()
  Plugin 'gmarik/Vundle.vim'
  Plugin 'crooloose/nerdtree.git'
  Plugin 'tomasr/molokai'
  Plugin 'kien/ctrlp'
  Plugin 'bling/vim-airline'
  syntax enable
  colorscheme molokai
  </code></pre>
  
  <p>Pretty, straight forward really. I have couple of plugins that I want to install using Vundle but whenever I do <code>:PluginInstall</code> it prompts me for the github username and password. I know that my username and password are correct but it keeps failing to authenticate. I have two way authentication on in github btw. I don't think that matters.
  However, I get the following error.</p>
  
  <pre><code>[2014-09-19 23:18:14] 
  [2014-09-19 23:18:14] Plugin crooloose/nerdtree.git
  [2014-09-19 23:18:14] $ git clone --recursive 'https://github.com/crooloose/nerdtree.git' '/home/shriek/.vim/bundle/nerdtree'
  [2014-09-19 23:18:14] &gt; Cloning into '/home/shriek/.vim/bundle/nerdtree'...
  [2014-09-19 23:18:14] &gt; remote: Invalid username or password.
  [2014-09-19 23:18:14] &gt; fatal: Authentication failed for 'https://github.com/crooloose/nerdtree.git/'
  [2014-09-19 23:18:14] &gt; 
  [2014-09-19 23:19:51] 
  [2014-09-19 23:19:51] Plugin kien/ctrlp
  [2014-09-19 23:19:51] $ git clone --recursive 'https://github.com/kien/ctrlp.git' '/home/shriek/.vim/bundle/ctrlp'
  [2014-09-19 23:19:51] &gt; Cloning into '/home/shriek/.vim/bundle/ctrlp'...
  [2014-09-19 23:19:51] &gt; remote: Invalid username or password.
  [2014-09-19 23:19:51] &gt; fatal: Authentication failed for 'https://github.com/kien/ctrlp.git/'
  [2014-09-19 23:19:51] &gt; 
  [2014-09-19 23:19:52] 
  [2014-09-19 23:19:52] Helptags:
  [2014-09-19 23:19:52] :helptags /home/shriek/.vim/bundle/Vundle.vim/doc
  [2014-09-19 23:19:52] :helptags /home/shriek/.vim/bundle/vim-airline/doc
  [2014-09-19 23:19:52] Helptags: 2 plugins processed
  </code></pre>
  
  <p>I even tried connecting to github by doing <code>ssh -T git@github.com</code> which says 
  <code>Hi shriek! You've successfully authenticated, but GitHub does not provide shell access.</code></p>
  
  <p>So, I'm kinda lost on what's going on. Help?</p>