Add tidy script

Intended to maintain a git repo tidy.
Shorten dotfiles alias to dof
Add vim-powerline plugin
Add syntastic vim plugin
Update review script
Add instance.properties to cleanup exclude files
Beef up tidy script

Add options to regenerate tags and eclipse project files.
Remove maint git alias

The tidy script obsoletes this.
Add powerline loading to .bashrc
Replace pathogen with vundle

And a little cleanup.