Test fixes plus:

Merge branch 'runtime_refactor' into flow

Conflicts:
	crawler/src/test/java/com/graphaware/crawler/integration/ArbitraryTest.java
	crawler/src/test/java/com/graphaware/crawler/integration/NeoRankTest.java
	runtime/src/main/java/com/graphaware/runtime/BaseGraphAwareRuntime.java
	runtime/src/main/java/com/graphaware/runtime/BatchGraphAwareRuntime.java
	runtime/src/main/java/com/graphaware/runtime/ProductionGraphAwareRuntime.java
	runtime/src/main/java/com/graphaware/runtime/bootstrap/RuntimeKernelExtension.java