catch Throwable on deploy
Add proposed interface for http headers
Upgrade to hazelcast 2.5.1 https://github.com/vert-x/vert.x/issues/548
improved logging
https://github.com/vert-x/vert.x/issues/564
https://github.com/vert-x/vert.x/issues/552
changes to get Java examples working again
Merge remote-tracking branch 'origin/master' into netty_4.0.0.CR2
Adjust for latest netty changes.... Hopefully last api breakage