Introduce TimeInstant and remove redundant getNow and getInstant variations
Remove redundant getInstants methods after introduction of the TimeInstant
Attach events (api)
Get all events (api)
Events complete at the api level
Events complete at the rest level
Additional tests and some refactoring
Updated README, images to be fixed
Minor fix
Merge branch 'master' into events

Conflicts:
	src/main/java/com/graphaware/module/timetree/SingleTimeTree.java
	src/test/java/com/graphaware/module/timetree/SingleTimeTreeTest.java
Merged events branch
Merged conflicts
Merged conflicts