Git template directory

Effortless ctags:

Credits to Tim Pope for [this blog post](http://tbaggery.com/2011/08/08/effortless-ctags-with-git.html)

TL;DR: Basically, you’ll never have to manually run Ctags on a Git repository again.

Requirements: git & ctags (duhhh), and setting the ctags default file to `.git/ctags` instead of `ctags` ([vim-fugitive](https://github.com/tpope/vim-fugitive) already does that by default)


Preventing bundler errors:

pre-commit hook prevents anyone to commit an update to Gemfile, without updating and commiting as well the corresponding Gemfile.lock

TL;DR: No one will ever forget to run `bundle install`, ever