started work on fixing queue ordering bug
add release profile; source packaging, javadoc packaging, and signing should only run when requested
rewrote event queue to use a ConcurrentSkipListMap / LinkedList combination - concurrent access should work smoothly, and priority sorting is now fixed
Merge branch 'setfix' into executors

Conflicts:
	src/main/java/org/timothyb89/eventbus/EventBus.java
	src/main/java/org/timothyb89/eventbus/EventQueueDefinition.java