add note about support
improved exception messages
changed pom to upcoming version
throw IllegalArgument instead of NullPointer
refactored code for better usage in sub classes
Testcases which will fail for non-sequential EventProviders are skipped
added missing javadoc tag
added ParallelEventProvider implementation and adapted version number to 1.1.0
added changelog entry
Added @since tags
Improved tests
readme improved
Deprecated Listener#workDone(EventProvider) in favor of new method Event#removeListener(Listener)
Adapted readme and javadoc to recent changes
removed sentence which did not make sense anymore in the new context
adapted package info to new version number
fixed doc
trying travis
renamed and added .coveralls
specify jdk for travis