Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Changes StackSettings constructor to use kwargs."
  - Changes StackSettings constructor to use kwargs.

    And changed line lengths to 79 for pep8.

    JIRA: SNAPS-103

    Change-Id: Iacc3a42cbf3bebe7336d17fc4a4574590f15b93a
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 2e0e2c6..49402e3 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 2e0e2c683e2329084f3e7eea6ed5d9ab5ed56661
+Subproject commit 49402e392615f0326b37c772ed91671bd880f92d