CHRON-59 Fix a bug where it wasn't possible to get the last index written reliably.
Merge remote-tracking branch 'origin/master'

Conflicts:
	chronicle/src/main/java/net/openhft/chronicle/VanillaChronicle.java
CHRON-59 Fix a bug where it wasn't possible to get the last index written reliably.
Merge branch 'master' into HFT-CHRON-40