Introduce new font stack, as well as redo the homepage

- remove <i class="fa"> fonts

go/go/templates/layouts/navigation.html

@@ -14,7 +14,7 @@
         </button>
         <!-- Go brand logo -->
         <a class="navbar-brand" href="{% url 'index' %}">
-            <i class="fa fa-link"> Go</i>
+            <i class="fa fa-link"></i> Go
         </a>
     </div>
 

go/go/templates/public_landing.html

@@ -27,7 +27,7 @@ SRCT Go • Welcome
 <div class="page-header" id="banner">
   <div class="row">
     <div class="col-md-12">
-        <h1><i class="fa"><i class="fa fa-link"></i> Go</i></h1>
+        <h1><i class="fa fa-link"></i> Go</h1>
         <p class="lead">University-branded URL shortening</p>
     </div>
   </div>
@@ -37,7 +37,7 @@ SRCT Go &bull; Welcome
 <div class="row">
     <!-- what is go? -->
     <div class="col-md-4">
-        <h3><i class="fa">What is Go?</i></h3>
+        <h3>What is Go?</h3>
         <legend></legend>
         <p>
             Go provides University-branded URL shortening for student  organizations,
@@ -53,7 +53,7 @@ SRCT Go &bull; Welcome
 
     <!-- why should I use Go? -->
     <div class="col-md-4">
-        <h3><i class="fa">Why should I use Go?</i></h3>
+        <h3>Why should I use Go?</h3>
         <legend></legend>
         <p>Go features:</p>
         <ul class="fa-ul">
@@ -78,7 +78,7 @@ SRCT Go &bull; Welcome
 
     <!-- how do I access Go? -->
     <div class="col-md-4">
-        <h3><i class="fa">How do I access Go?</i></h3>
+        <h3>How do I access Go?</h3>
         <legend></legend>
         <p>
             In order to prevent abuse of the URL shortener, access to Go

go/static/css/styles.css

 html {
   position: relative;
   min-height: 100%;
+  font-family: -apple-system, BlinkMacSystemFont, 
+      "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", 
+      "Fira Sans", "Droid Sans", "Helvetica Neue", 
+      sans-serif;
 }
 body {
   /* Margin bottom by footer height */