HA documentation
event bus reply timeouts
docs for fatjars
event bus timeout docs
Merge branch 'dns_support'
Merge branch 'eventbus_timeouts'
Merge branch 'fatjars'
Merge branch 'ha_support'
Merge branch 'master' of github.com:vert-x/vert-x.github.io
merged 2.1M1 docs in and made some edits