Cleaned up my Ruby snippets.

Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>
Indentation settings for ERuby.

Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>
Added vim-ragel as a submodule.

Signed-off-by: Yorick Peterse <yorickpeterse@gmail.com>