Use Preact, rather than React (#91)

* moving to Preact to shave off 100+kb

* preact'ed

components/Navigation.jsx

@@ -1,36 +1,27 @@
 var React = require('react');
-var ReactRouter = require('react-router');
-var Link = ReactRouter.Link;
-
 var sections = require("./sections");
 var sectionPages = Object.keys(sections);
-
 var SectionHeader = require("./SectionHeader.jsx");
 
 var Navigation = React.createClass({
   generateNavItem: function(name, entry) {
     var Type = sections[name];
-    var title = Type.getDefaultProps().title;
+    var title = Type.defaultProps.title;
     var locale = SectionHeader.locale;
     if (typeof window !== "undefined" && window.location.toString().indexOf(locale) === -1) {
       locale = '';
     }
     var fragmentid = `${locale ? './' + locale + '/': '.'}#${name}`;
     var link = <a href={fragmentid}>{ title }</a>;
-    if (this.props.fullNav) {
-      link = <Link to={name}>{title}</Link>;
-    }
     var last = sectionPages.length - 1;
     if (entry===last) entry = null;
     return <li key={name} data-number={entry}>{link}</li>;
   },
 
   generateNav: function() {
-    if (this.props.compact) return null;
-
     return (
       <div ref="navigation">
-        <navigation className={ this.props.compact ? "compact" : null }>
+        <navigation>
           <ul className="navigation">
             { sectionPages.map(this.generateNavItem) }
           </ul>