Merge branch 'next' into branch-2.1

Merge branch 'next' into branch-2.1

* next: (22 commits)
  Update NEWS and version for 2.0.1 release
  gnt-{instance,backup}(8) --nic is actually --net
  Fix a wrong function name in backend.DrbdAttachNet
  GNT-CLUSTER(8) fix search-tags example
  Enable stripped LVs
  Add a lvm stripecount configure parameter
  Add more constants for DRBD and change sync tests
  Wait for a while in failed resyncs
  Assemble DRBD using the known size
  Fix two issues with exports and snapshot errors
  Set the size on new DRBDs in replace secondary
  Change the bdev init signatures
  Release 2.0.0 final
  watcher: automatically restart noded/rapi
  watcher: handle full and drained queue cases
  rapi: rework error handling
  Fix backend.OSEnvironment be/hv parameters
  rapi: make tags query not use jobs
  Change failover instance when instance is stopped
  Export more instance information in hooks
  ...

Conflicts:

	lib/cmdlib.py
	test/ganeti.utils_unittest.py

Signed-off-by: Guido Trotter <ultrotter@google.com>