added new tweet and hit classes
moving towards new API Model.

-ANRHit class created from json dicts via convenience method
-ANRHitCell gets setPropertiesFromHit: method
-new tableVC added
-serverhandler now defaults to returning ‘pages’ of hits, by creation date
pagination, tweet, image retrieval all basically working
started getting posting working.
did a fuckin’ whole buncha stuff eh
added segmented control for selecting data source.

- added table header view
- added refreshing new hits to top of table
- added ability to approve hits (again)
- can communicate with new-style server API
added info updating with new hit count, bug fixes
cleanup and changed hostnames
Merge branch 'newapi' into develop