Remove Zeus and Cucumber references

* Spring is now built in to Rails:
  http://weblog.rubyonrails.org/2014/4/8/Rails-4-1/
* Haven't used Cucumber on a project in over a year
Added local config files

Local modifications to thoughtbot dotfiles
Tweaked local vim configuration
Improved the vimrc

* removed duplicated code
* changed vim error responsivness
* made vim render faster
* tweaked mouse functionality
* changed buffer handling
Added local config files

Local modifications to thoughtbot dotfiles
Tweaked local vim configuration
Improved the vimrc

* removed duplicated code
* changed vim error responsivness
* made vim render faster
* tweaked mouse functionality
* changed buffer handling
Merge branch 'master' of github.com:stefanfrede/dotfiles