Clean up wine databases.

The wine databases were incomplete and slightly inconsistent. This
should wrap up the implementation of the SQLite database and put it on
the same level as the flat file implementation.

- Rename FlatFileManagerImpl to FlatFileWineDatabase.
- Add Javadoc comments to the WineDatabase interface.
- Change the wording in one sentence for README.
Enum fields now newline separated.
Apply clean-up + format to all classes.
Fix edit/delete inconsistency.

Also fix network bug relating to NetworkOnMainThreadException, will
defer fixing that until the desired functionality is achieved.

- Renamed EditWineView to CreateOrEditWineActivity to be more
	appropriate.