Persistent User Account Data and Jawn Caching

User Account data is now stored from instance to instance of the application. 

More excitingly, Jawns are now cached in a local SQLite database within the application. More specifically, the most recent 50 Jawns in the gridview are cached whenever GetXJawns/Ideas/Sparks is called. The data that these Jawns store is equivalent to the "lite" request from the server, and only store Strings and ints so the size of the database within the application is pretty negligible.