Add javadoc to MemoryManager (and delete unnecessary interface).
Add call to generate C++ header files into bootstrap
Fix and add test for Netty version string settings.
(also fixed incorrect property using '-' instead of '.' in pom.xml)
Javadoc improvements
Document journal inner workings
Merge pull request #783 from FranciscoBorges/master

Fix netty version check, and other small things