Merge pull request #157 from tcr3dr/patch-4

Adds wxpython to the requirements for running wx on mac.

Author: mrpollo

docs/guide/getting_started.rst

@@ -68,7 +68,8 @@ If you're on Mac OSX, you can use `Homebrew <http://brew.sh/>`_ to install *WXMa
 
 .. code:: bash
 
-    brew install wxmac
+    brew tap homebrew/science
+    brew install wxmac wxpython opencv
 	
 Uninstall *python-dateutil* (OSX and Windows come bundled with a version that is not supported for some dependencies):
 
@@ -242,4 +243,4 @@ Then connect Mission Planner to this UDP port:
 
       Mission Planner: Listen Port Dialog
 
-After connecting, vehicle parameters will be loaded into *Mission Planner* and the vehicle is displayed on the map.
+After connecting, vehicle parameters will be loaded into *Mission Planner* and the vehicle is displayed on the map.