Make feature icons clickable. Update copy.

index.html

@@ -108,7 +108,7 @@
             <div class="row">
                 <div class="col-lg-4">
                     <section>
-                        <span class="feature-icon"><span class="fa fa-globe"></span></span>
+                        <span class="feature-icon page-scroll"><a class="fa fa-globe" href="#features" title="Integration"></a></span>
                         <header>
                             <h2>Integration</h2>
                         </header>
@@ -122,7 +122,7 @@
                 </div>
                 <div class="col-lg-4">
                     <section>
-                        <span class="feature-icon"><span class="fa fa-check-square-o"></span></span>
+                        <span class="feature-icon page-scroll"><a class="fa fa-check-square-o" href="#features" title="Features"></a></span>
                     </section>
                         <header>
                             <h2>Features</h2>
@@ -146,7 +146,7 @@
                 </div>
                 <div class="col-lg-4">
                     <section>
-                        <span class="feature-icon"><span class="fa fa-video-camera"></span></span>
+                        <span class="feature-icon page-scroll"><a class="fa fa-video-camera" href="#features" title="Screencasts"></a></span>
                         <header>
                             <h2>Screencasts</h2>
                         </header>
@@ -178,8 +178,8 @@
             <div class="row">
                 <div class="col-lg-8 col-lg-offset-2">
                     <h3>Donate</h3>
-                    <p>Thank you for your donations. They allow me to spend more time working on <strong>converse.js</strong>.
-                    </p>
+                    <p class="bitcoin-header">Most of the work done on <strong>converse.js</strong> is unpaid and a labor of love.</p>
+                    <p>A heartfelt thanks to those have donated already.</p>
                     <p class="bitcoin-header"><strong>Bitcoin</strong></p>
                     <img src="css/images/bitcoin_qr_code.png"/>
                     <p>16FsPqE9DhFTryxrUenpsGX4LJ1TPu8GqS</p>