Merge branch 'stable-2.13' into stable-2.14

* stable-2.13
  Change wording in documentation wrt configure-time paths
  Do not distribute files with configure-specific information
  LXC: Add udevadm settle invocation to prevent errors

* stable-2.12
  QA: Fix CheckFileUnmodified to work with vcluster
  QA: Fix white-spaces in CheckFileUnmodified
  QA: Check that the cluster verify doesn't change the config
  QA: Allow to check that an operation doesn't change a file
  Use only shared configuration lock for ComputeDRBDMap
  Only assert properties of non-None objects
  If any IO error happens during job forking, retry
  Add a function for retrying `MonadError` computations
  Annotate every send/receive operation in Exec.hs
  Refactor `rethrowAnnotateIOError` and simplify its usage
  Query.Exec: Describe error if talking to job process fails
  Query.Exec: Log error when talking to job process fails
  Fix the generation of Makefile.ghc rules for *_hi
  Fix error handling for failed fork jobs
  If a forked job process malfunctions, kill it thoroughly
  Add function to run checked computations in `MonadError`
  Add job ID and process ID to log statements in Exec.hs

* stable-2.11
  Improve speed of Xen hypervisor unit tests
  Improve Xen instance state handling
  Renew crypto retries for non-master nodes
  Retries for the master's SSL cert renewal
  Unit tests for offline nodes
  De-duplicate testing code regarding pathutils
  Make LURenewCrypto handle unreachable nodes properly
  Error handling on failed SSL cert renewal for master
  Unit test for LURenewCrypto's valid case
  Mock support for pathutils
  Increase timeout of crypto token RPC

* stable-2.10
  Make QA fail if KVM hotplugging fails
  Always preserve QA command output
  Don't lose stdout/stderr in AssertCommand
  qa_utils: Allow passing fail=None to AssertCommand
  qa_utils: Make AssertCommand return stdout/stderr as well
  Allow plain/DRBD conversions regardless of lack of disks
  Add support for ipolicy modifications to mock config

Conflicts:
	lib/cmdlib/cluster/verify.py
	lib/cmdlib/instance.py
	lib/config/__init__.py
	qa/qa_utils.py
Resolution:
        verify.py: Merge renew-crypto changes in manually.
        instance.py: Remove fixes for DRBD->plain conversion as
          instances with no disks belong to the diskless template
          implicitly as of 2.14.
        __init__.py: Keep lock shared, rename decorator.
        qa_utils.py: Take 2.10 changes.

Signed-off-by: Hrvoje Ribicic <riba@google.com>
Reviewed-by: Helga Velroyen <helgav@google.com>