Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Protect vs TypeErrors when cleaning stacks"
  - Protect vs TypeErrors when cleaning stacks
    
    It protects vs exceptions raised by shade when cleaning stacks.
    
    Traceback (most recent call last):
      File "/usr/lib/python2.7/site-packages/functest/opnfv_tests/vnf/ims/heat_ims.py", line 226, in clean
        self.cloud.delete_stack(self.stack.id, wait=True)
      File "/usr/lib/python2.7/site-packages/shade/openstackcloud.py", line 1416, in delete_stack
        marker=marker)
      File "/usr/lib/python2.7/site-packages/shade/_heat/event_utils.py", line 90, in poll_for_events
        stack_status = stack['stack_status']
    TypeError: 'NoneType' object has no attribute '__getitem__'
    
    Change-Id: I1a0ed0cd669d5234ca1ff3b6bbc9d1b13f14b02f
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/functest b/docs/submodules/functest
-Subproject 3b5a537a6ababd5d6a7157157ae4108ed21075c
+Subproject 8ca772c7ae1d477d072cef3ec43144a2a681233