Added the adapter annotation to MySQL and fixed issues with empty
hashmaps causing null errors.
Added a flag serializer adapter for the protection flags so that flags
are saved and loaded correctly.
Renamed the Adapter notation class to be clearer about what it is doing.
Generally these are very easy to understand. They use an abstract class
for common code.
I have not tested these in-game. I would like to see if I can create
some test classes but it may not be possible because of the static
BSkyBlock calls.
