temporary disable of caching so we can load more stories
cleaned up adding more stories to category views
Merge branch 'refs/heads/3.6/ipad-news-refresh-control' into 3.6/ipad-news-categories-if-no-internet

Conflicts:
	Modules/News/iPad/View Controllers/MITNewsiPadCategoryViewController.m
	Modules/News/iPad/View Controllers/MITNewsiPadViewController.m
reenable caching
don't want categories showing before stories.
Remove the GDataXML libraries

These libraries are no longer used in the app.
added reachability to main view
Add MIT logo for the side drawer
updated cdlogs
Update the root controller

Instead of switching between modules, just manage a list of view controllers (and let the app delegate handle the module-specific tasks)
Remove the older module list/grid code
Initial integration of new root view controller

Also remove much of the springboard-style code
Project file changes

Changes for commits 1a24b07f - 46a2ad58
Add a main storyboard the app
Update the News module to return a UINavigationController instead of the StoryListViewController
Fixes a bug where new stories would not be displayed immediately after being updated
Merge pull request #116 from MIT-Mobile/3.6/ipad-news-categories-if-no-internet
made reloaddata thread safe
using a NSMapTable instead of an Array
added load more table view cell height constant