Integrate ZeroClipboard to easily copy code snippets
refactor and restyle
Remove unused variables.
Update ZeroClipboard to v1.3.5.

Also use the official filenames.
Run `grunt dist`.
Merge branch 'master' into docs_zeroclipboard

Conflicts:
	Gruntfile.js
	docs/assets/css/docs.min.css
	docs/assets/js/_src/application.js
	docs/assets/js/docs.min.js
Merge branch 'docs_zeroclipboard' of github.com:twbs/bootstrap into docs_zeroclipboard

Conflicts:
	dist/js/bootstrap.min.js
	docs/dist/js/bootstrap.min.js