Small tweaks to site and doc css.

Also, in Makefile, remove old HTML build first during "make html" step.

Makefile

@@ -105,6 +105,7 @@ check:: stamp-npm
 ## Documentation
 
 html:
+	rm -rf $(BUILDDIR)/html
 	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
 	@echo
 	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."

css/theme.css

@@ -170,6 +170,9 @@ a:focus {
   color: #ffffff;
   background: rgba(255, 255, 255, 0.1);
 }
+.btn-text {
+  font-family: "Lora", "Helvetica Neue", Helvetica, Arial, sans-serif;
+}
 .page-scroll .btn-circle i.animated {
   -webkit-transition-property: -webkit-transform;
   -webkit-transition-duration: 1s;

docs/source/_static/style.css

+body {
+  font-family: "Lora", "Helvetica Neue", Helvetica, Arial, sans-serif;
+}
+
 h1 {
     font-size: 50px;
 }
@@ -5,3 +9,4 @@ h1 {
 .navbar-brand {
     padding-top: 7px;
 }
+

index.html

@@ -56,12 +56,12 @@
                     <li class="page-scroll">
                         <a href="#contact">Contact</a>
                     </li>
-                    <li class="page-scroll">
-                        <a href="https://github.com/jcbrand/converse.js/releases" class="button" target="_blank">Download</a>
-                    </li>
-                    <li class="page-scroll">
+                    <li>
                         <a href="/docs/html/index.html">Documentation</a>
                     </li>
+                    <li>
+                        <a href="https://github.com/jcbrand/converse.js/releases" class="button" target="_blank">Download</a>
+                    </li>
                 </ul>
             </div>
             <!-- /.navbar-collapse -->
@@ -77,7 +77,7 @@
                         <h1 class="brand-heading"><i class="icon-conversejs"></i>Converse.js</h1>
                         <p class="intro-text">A free and open-source XMPP chat client for your website</p>
                         <div class="page-scroll">
-                            <a href="#about" class="btn btn-default btn-lg">Learn More</a>
+                            <a href="#about" class="btn btn-default btn-lg"><span class="btn-text">Learn More</span></a>
                         </div>
                     </div>
                 </div>