add tools comand to create metadata storage tables
Merge pull request #684 from metamx/metadata-init-tool

add tools comand to create metadata storage tables
add missing tables
Merge pull request #685 from metamx/metadata-init-tool

add missing tables
default service/host/port for all nodes
Merge pull request #686 from metamx/default-host-port

default service/host/port for all nodes
Merge branch 'druid-0.7.x' into offheap-incremental-index
Merge branch 'offheap-incremental-index' of github.com:metamx/druid into offheap-incremental-index