updated the version of lang to -         <dependency>
                                                 <groupId>net.openhft</groupId>
                                                 <artifactId>lang</artifactId>
                                                 <version>6.4.10</version>
                                             </dependency>
Add a test for paging latency.
Merge remote-tracking branch 'origin/master'
CHRON-75 VolatileSink crashes
Add support for readWriteLocks. Reads are re-entrant but not writes.
CHRON-75 : VolatileExcerpt crashes after some iterations
Merge pull request #95 from lburgazzoli/HFT-CHRON-75

CHRON-75 : VolatileExcerpt crashes after some iterations
Merge branch 'master' into HFT-CHRON-56

Conflicts:
	chronicle-test/pom.xml
	chronicle/pom.xml