fix(docs): update requirements in sync with controller

Author: mboersma

docs/README.md

@@ -16,11 +16,6 @@ Please add any issues you find with this documentation to the
     ```console
     $ virtualenv venv -q --prompt='(docs)' && . venv/bin/activate
     (docs)$ pip install -r docs_requirements.txt
-    Downloading/unpacking celery==3.1.8
-    ...
-    Successfully installed psycopg2 python-etcd PyYAML ...
-    Cleaning up...
-    (docs)$
     ```
 
     See comments at the top of the ``docs_requirements.txt`` file if you
@@ -32,7 +27,7 @@ Please add any issues you find with this documentation to the
     (docs)$ make server
     sphinx-build -b dirhtml -d _build/doctrees   . _build/dirhtml
     Making output directory...
-    Running Sphinx v1.2.2
+    Running Sphinx v1.2.3
     ...
     Build finished. The HTML pages are in _build/dirhtml.
     Serving HTTP on 0.0.0.0 port 8000 ...

docs/docs_requirements.txt

@@ -7,15 +7,14 @@
 # NOTE: For testing on Mac OS X Mavericks, use the following to work around a clang issue:
 # ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install [args]
 #
-celery==3.1.13
 Django==1.6.7
 # FIXME: switch to upstream pending merge of https://github.com/kmmbvnr/django-fsm/pull/59
 git+https://github.com/deis/django-fsm@propagate-false
 django-guardian==1.2.4
 django-json-field==0.5.7
 djangorestframework==2.3.14
 docker-py==0.4.0
-gunicorn==18.0
+gunicorn==19.1.1
 paramiko==1.14.1
 psycopg2==2.5.4
 python-etcd==0.3.0
@@ -28,6 +27,6 @@ requests==2.3.0
 termcolor==1.1.0
 
 # Deis documentation requirements
-Sphinx>=1.2.2
+Sphinx>=1.2.3
 smartypants>=1.8.6
 sphinxcontrib-httpdomain>=1.3.0