Make more use of screen space in the documentation.

Basically move from a 940px system to 1200px grid system.
Hopefully future DOM modifications will make this better.

docs/_static/style.css

@@ -23,7 +23,11 @@ p {
 
 div.document {
   margin: 10px auto 0 auto;
-  max-width: 940px; /* page width */
+  max-width: 1200px; /* page width */
+}
+
+div.body {
+  max-width: 960px;
 }
 
 div.documentwrapper {
@@ -32,7 +36,7 @@ div.documentwrapper {
 }
 
 div.bodywrapper {
-  margin: 0 0 0 220px; /* sidebar width */
+  margin: 0 0 0 240px; /* sidebar width */
 }
 
 div.body {
@@ -46,7 +50,7 @@ div.footer {
   font-size: 14px;
   margin: 20px auto 30px auto;
   text-align: right;
-  max-width: 880px;
+  max-width: 1200px; /* page width */
 }
 
 div.footer a {
@@ -64,7 +68,7 @@ div.sphinxsidebar {
   font-size: 14px;
   line-height: 1.5em;
   margin-left: -100%;
-  width: 220px; /* sidebar width */
+  width: 240px; /* sidebar width */
 }
 
 div.sphinxsidebarwrapper {
@@ -74,7 +78,7 @@ div.sphinxsidebarwrapper {
 
   /* sticky sidebar */
   position: fixed;
-  width: 220px; /* sidebar width */
+  width: 240px; /* sidebar width */
   height: 90%;
   overflow: hidden;
 }