Merge pull request #11 from stevepiercy/master

comment out latex_logo to get RTD to build

docs/conf.py

@@ -181,7 +181,7 @@ latex_documents = [
 
 # The name of an image file (relative to this directory) to place at the
 # top of the title page.
-latex_logo = '.static/logo_hi.gif'
+# latex_logo = '.static/logo_hi.gif'
 
 # For "manual" documents, if this is true, then toplevel headings are
 # parts, not chapters.