WIP : HARP logging for LM replication, WriteLock done
Minor fixes and formatting
Changes for always choosing first vnode when the client asks for a LMClient
Merge branch 'master' of https://github.com/narendran/go-chord

Conflicts:
	lm_integration_test.go
	ring.go
Merge branch 'master' of https://github.com/narendran/go-chord
Bug fix : Index out of bounds on the operations log
Avoid making a LM lookup if the node making the lookup doesn't have successors - same problem as single Vnode in a ring
HARP replication
HARP bug fixes, primary secondary overlap checks
Merge branch 'master' of https://github.com/narendran/go-chord