Merge pull request #12 from gkleiman/master

Allow subclasses of Backbone.TableView to define their own events and to override ours
Merge branch 'master' of https://github.com/gkleiman/Backbone.TableView
Add noFetch option to prevent TableView to do fetch on collections
Allow empty values in querystring
Get pagination data from collection if available
Only allow integers from collection data's page/size values
Add hooks to redraw after add/remove/destroy events in collection