Enable folding

Enable folding for XML files.
Added plugin

Added Puppet plugin from https://github.com/rodjek/vim-puppet.git
Ignore
Filetype config

Configuration for the Puppet filetype.
Added plugin

Added emmet plugin from https://github.com/mattn/emmet-vim.git
Added plugin

MatchTagAlways from https://github.com/Valloric/MatchTagAlways.git
Ignore