Make the change trackers in NodeManager thread-safe
Merge pull request #3327 from chrisvest/1.9-disable-omit-stacktrace

Disable the OmitStackTraceInFastThrow JVM feature
Merge pull request #3320 from chrisvest/1.9-threadsafe-trackers

Make the change trackers in NodeManager thread-safe
Merge remote-tracking branch 'upstream/1.9-maint' into 2.0-maint

Conflicts:
	community/kernel/src/main/java/org/neo4j/kernel/impl/core/NodeManager.java