Feature change plans in the next version: from 0.9.9-epsilon to 0.9.9-zeta

[woohyeok-choi]

• Add several fields in Message, Media, and CallLog data
  From official documentations, I found several fields that well-describe data mentioned above.

• Remove auto-sync option
  I think that auto-sync option is not important feature; however, implementation of this can result in possible errors like redundant sync requests.

• Disallow to delete DB files during sync or collectors' operation
  Sync and collectors' operation require access to database files.
  During such operations, deleting DB files can result in a unexpected crash.
  In the next version, deleting DB files is available only when not sync-in-progress and no collector is operating.