add /api/heartbeat which returns OK in Json format
add /api/dashboard which returns the most important numbers
Merge branch 'next' into topic/api
replace regionName by table in api/dashboard for compaction_duration
add support for "range" parameter
refactor HBase-Version Dependend packages
add data for 'region_balance' and 'region_size' to Api, without stdDeriv yet
fix MetricsSpec
fix HBase090 startup.
add jsonIgnore Properties
rename stdDev to stdDeriv
Add standard deviation to region statistics
add /api/tables
move all JSon Endpoints to Api-Controller. Remove dashboard() API
Update Vagrantfile
Merge branch 'topic/api' into next
Update README