added AFNetworking and CHCSVParser for downloading and parsing CSV files
refined getImageVertices method: placed into async thread for I/O to download rover attitude and map pixel data
updated to new progress API
updated local level quaternion API to fetch CSV data
Consolidated common code into Rover base class for MER and MSL. Added NSURLCache configuration on AppDelegate startup to use disk cache.
added 3d to 2d function
fixed bug with infinite loop when searching returns fewer images than will fill the table
updated MarsScene to run a image search by rover location rather than rely on whatever images happen to already be loaded
description for debugging and logging
work in progress on mosaic and map views