Added a per-save config file called DimDoorsWorld.cfg. Its corresponding
class is DDWorldProperties. This class supports whitelisting and
blacklisting dimensions for Rift Cluster and Rift Gateway generation.
Note that our ban against generating gateways in the Nether and The End
still applies regardless of those settings. The new config file is
loaded before the server starts initializing terrain. Also moved
DDProperties to another package alongside DDWorldProperties - that
required updating references in most of the mod's files.
I copied two functions from CommandBase into DDCommandBase because their
absence is breaking our builds on Technic and Dryware Jenkins. I have no
idea why that's happening. My copy of MC's source code has those
functions in CommandBase and my code compiles without a problem.
Made some minor changes to the way that we register commands with
Minecraft. Also changed the way that we generate onCommandUsage()
strings so that the style of our outputs is consistent with that of
Minecraft and Forge commands. It seems the way the messages were
generated changed for MC 1.6. Finally, removed compareTo() from
DDCommandBase since it was completely unnecessary (CommandBase already
does the same) and casting objects to CommandBase was causing errors
with some Chicken Bones commands that directly implemented ICommand.
