Minor fixes
Configuration added to drawings, minor refactoring in generator
Generator updated to prevent simultaneous startups.
javadoc updated, default configuration added, Generator extracted as interface.
GenerationWorker refactored to work with specified set of shards instead of shard range. SimpleGeneratorImpl updated to support GenerationWorker changes.
Refactoring
Configuration stub added
Configurator extended
JAXB annotations added, default configuration implemented
File based configuration implemented
InputStream unmarshaling implemented
Configuration file loading added.
Error handling added to configurator.
TODOs added