Bootstrap is no longer affiliated with Twitter

"Twitter Bootstrap" => "Bootstrap"
	Per http://getbootstrap.com/about/#brand
Update Bootstrap links to http://getbootstrap.com
Refs twbs/bootstrap#9899

Author: cvrebert

_includes/themes/bootstrap-3/default.html

@@ -82,7 +82,7 @@
       <div class="container">
         <p>&copy; {{ site.time | date: '%Y' }} {{ site.author.name }}
           with help from <a href="http://jekyllbootstrap.com" target="_blank" title="The Definitive Jekyll Blogging Framework">Jekyll Bootstrap</a>
-          and <a href="http://twitter.github.com/bootstrap/" target="_blank">Twitter Bootstrap</a>
+          and <a href="http://getbootstrap.com" target="_blank">Bootstrap</a>
         </p>
       </div>
     </div>

_includes/themes/twitter/default.html

@@ -55,7 +55,7 @@
       <footer>
         <p>&copy; {{ site.time | date: '%Y' }} {{ site.author.name }}
           with help from <a href="http://jekyllbootstrap.com" target="_blank" title="The Definitive Jekyll Blogging Framework">Jekyll Bootstrap</a>
-          and <a href="http://twitter.github.com/bootstrap/" target="_blank">Twitter Bootstrap</a>
+          and <a href="http://getbootstrap.com" target="_blank">Bootstrap</a>
         </p>
       </footer>