Update moto version to match PRs

The following PRs fix various moto issues:
- https://github.com/spulec/moto/pull/1140
- https://github.com/spulec/moto/pull/1146
- https://github.com/spulec/moto/pull/1148
- https://github.com/spulec/moto/pull/1149
- https://github.com/spulec/moto/pull/1150
- https://github.com/spulec/moto/pull/1152

These have been merged into Moto 1.1.10

requirements.txt

@@ -1,2 +1 @@
-git+git://github.com/spulec/moto
 -e ".[dev]"

setup.py

@@ -36,7 +36,7 @@ REQS_FULL = REQS_BASE + REQS_AWS + REQS_OPENSTACK
 # httpretty is required with/for moto 1.0.0 or AWS tests fail
 REQS_DEV = ([
     'tox>=2.1.1',
-    'moto>=1.1.7',
+    'moto>=1.1.10',
     'sphinx>=1.3.1',
     'flake8>=3.3.0',
     'flake8-import-order>=0.12'] + REQS_FULL