Optimized imports in DeveloperActivity
* Renamed sdcard_archive_path to use camellias
* Moved generation of a toast for sdcard failure and the sdcardArchivePath methods into the DeveloperActivity
Corrected bitwise and to logical and.  Damn you java.
* split out a ClientDataStorageManager and used it in
  ClientStumberService so that we can access it from the standalone
  Mozilla Stumbler
* Moved all UI related code out of DataStorageManager and into
  ClientDSM
* Updated testcases for this adjustment