Bump jQuery dependency version

cf-demo wanted a version of jQuery no greater than 1.10.x, but one of
cf-demo's dependencies requires jQuery 1.11.x
Fixes for use with cf-grid 0.9.0
Add grid_wrapper mixin to .wrapper
Remove errant closing tags
Merge pull request #9 from Scotchester/master

Fix for use with cf-grid 0.9.0