Make SampleBreakableBlock mod comments clearer

Renamed some things which were confusingly named.
Added additional comments
Support multiple config files

Config files are now chosen declaratively by the config class.
Merge branch 'master' of https://github.com/ChronosWS/StargazerMC

Conflicts:
	modsrc/stargazer/minecraft/samples/blockwithdrops/SampleBreakableBlock.java