Javascript cleanup

Remove unused bootstrap.js, bootstrap-hover-dropdown.min.js, and
jquery-1.11.0.js files. Those are uploaded
with each publish to our servers, there's no need to do that.

Change permissions on file bootstrap.min.js, we do not need executable
permissions on it.

Upgrade jquery to current 1.11.3 version.

Change-Id: Ieaa89e6dcd772d90f0e95ad7d7cf8b6a97737852

openstackdocstheme/theme/openstackdocs/script_footer.html

@@ -1,5 +1,5 @@
     <!-- jQuery Version 1.11.0 -->
-    <script type="text/javascript" src="{{pathto('_static/js/jquery-1.11.2.js', 1)}}"></script>
+    <script type="text/javascript" src="{{pathto('_static/js/jquery-1.11.3.js', 1)}}"></script>
 
     <!-- Bootstrap Core JavaScript -->
     <script type="text/javascript" src="{{pathto('_static/js/bootstrap.min.js', 1)}}"></script>

openstackdocstheme/theme/openstackdocs/static/js/bootstrap-hover-dropdown.min.js

@@ -1,12 +0,0 @@
-/**
- * @preserve
- * Project: Bootstrap Hover Dropdown
- * Author: Cameron Spear
- * Version: v2.0.11
- * Contributors: Mattia Larentis
- * Dependencies: Bootstrap's Dropdown plugin, jQuery
- * Description: A simple plugin to enable Bootstrap dropdowns to active on hover and provide a nice user experience.
- * License: MIT
- * Homepage: http://cameronspear.com/blog/bootstrap-dropdown-on-hover-plugin/
- */
-!function($,n,e){var o=$();$.fn.dropdownHover=function(e){return"ontouchstart"in document?this:(o=o.add(this.parent()),this.each(function(){function t(e){o.find(":focus").blur(),h.instantlyCloseOthers===!0&&o.removeClass("open"),n.clearTimeout(c),i.addClass("open"),r.trigger(a)}var r=$(this),i=r.parent(),d={delay:500,instantlyCloseOthers:!0},s={delay:$(this).data("delay"),instantlyCloseOthers:$(this).data("close-others")},a="show.bs.dropdown",u="hide.bs.dropdown",h=$.extend(!0,{},d,e,s),c;i.hover(function(n){return i.hasClass("open")||r.is(n.target)?void t(n):!0},function(){c=n.setTimeout(function(){i.removeClass("open"),r.trigger(u)},h.delay)}),r.hover(function(n){return i.hasClass("open")||i.is(n.target)?void t(n):!0}),i.find(".dropdown-submenu").each(function(){var e=$(this),o;e.hover(function(){n.clearTimeout(o),e.children(".dropdown-menu").show(),e.siblings().children(".dropdown-menu").hide()},function(){var t=e.children(".dropdown-menu");o=n.setTimeout(function(){t.hide()},h.delay)})})}))},$(document).ready(function(){$('[data-hover="dropdown"]').dropdownHover()})}(jQuery,this);