initial nix setup
some more happy nix stuff
adding package.nix
bootstraping like a boss
adding bower install to bootstrap-nix
yaay .. bower2nix rules!
rewrite of toggle pattern

- fixing toggling on same element
- removed menu, externalClose and preventDefault options
- add targetScope option
- add tests and make them faster
- complete documentation of options and provide more examples
fixing tests of pattern-toggle-test.js
merge