Fixed: Undodir reconfiguration.

vim-sensible takes care of the file locations. Undo between sessions did
not work anymore with this overwrites.
Updated: Moved PDV config from .vimrc to PHP ftplugin.

This fixes PDV to be available in all PHP buffers.
Fixed: Incorrectly indented newline after PHP snippets.
Fixed: Use more unambiguous snippet triggers.
Fixed: Add SVN commit files to restore position ignore list.
Added: Link to Powerline doc.
Merge branch 'master' of https://github.com/tobyS/toby.vim

Conflicts:
	ftplugin/php.vim
Update to work with latest version of powerline