This change initializes rpc servers associated with disks that are
local. It makes object layer initialization on demand, namely on the
first request to the object layer.
Also adds lock RPC service vendorized minio/dsync
Policies are read once during server startup and subsequently
managed through in memory map. In-memory map is updated as
and when there are new changes coming in.
In current master ListObjectsV2 was merged into ListObjectsHandler
which also implements V1 API as well.
Move the detection of ListObject types to its rightful place
in http router.