Squashed '.vim/bundle/vim-airline/' content from commit 2539745

git-subtree-dir: .vim/bundle/vim-airline
git-subtree-split: 253974506a49c47758e414c7fa4aceffd47c20e7
Merge commit 'f380d95b91b62be218b8b36eb7d31f9506d33db3' as '.vim/bundle/vim-airline'
Organaize vimrc

It was a mess.
Make vim-airline operational

I copyed from @evandromr .vimrc
Comment what a setting command do

It enable 256 color to vim.
Set up spell highlighting.

The colors were not very good.
Configure vim-airline

I had obtained this from @leouieda .vimrc
Add command to generate help tags

The help docs from plugins were not being loaded. Typing it solved, so I
am putting on the .vimrc to be called everytime I open a file.