Scheduled weekly dependency update for week 32 (#494)

* Update coverage from 4.4.2 to 4.5.1

* Update docker from 3.3.0 to 3.4.1

* Update ipython from 6.3.1 to 6.5.0

* Update flake8 from 3.4.1 to 3.5.0

* Update sphinx from 1.7.4 to 1.7.6

* Update tox from 3.0.0 to 3.2.1

* Update pytest from 3.5.1 to 3.7.1

* Update pytest-sugar from 0.9.0 to 0.9.1

* Update pytest-timeout from 1.2.1 to 1.3.1

* Update sqlalchemy from 1.2.7 to 1.2.10

* Update psycopg2 from 2.7.3.2 to 2.7.5

Author: pyup.io bot

requirements.txt

@@ -1,15 +1,15 @@
-coverage==4.4.2
-docker==3.3.0
+coverage==4.5.1
+docker==3.4.1
 ipdb==0.11
-ipython==6.3.1
-flake8==3.4.1
+ipython==6.5.0
+flake8==3.5.0
 -e .[sa]
-sphinx==1.7.4
-tox==3.0.0
-pytest==3.5.1
+sphinx==1.7.6
+tox==3.2.1
+pytest==3.7.1
 pytest-cov==2.5.1
-pytest-sugar==0.9.0
-pytest-timeout==1.2.1
+pytest-sugar==0.9.1
+pytest-timeout==1.3.1
 sphinxcontrib-asyncio==0.2.0
-sqlalchemy==1.2.7
-psycopg2==2.7.3.2
+sqlalchemy==1.2.10
+psycopg2==2.7.5