Initial UI cleanup

- added assets_shared submodule
- added support for grunt
- cleanup of layout.html

Gruntfile.js

@@ -0,0 +1,31 @@
+module.exports = function(grunt) {
+    grunt.initConfig({
+        pkg: grunt.file.readJSON('package.json'),
+
+        sass: {
+            dist: {
+                options: {
+                    style: 'compressed'
+                },
+                files: {
+                    'public_html/assets/css/main.css': 'public_html/assets/sass/main.sass'
+                }
+            }
+        },
+
+        autoprefixer: {
+            no_dest: { src: 'public_html/assets/css/main.css' }
+        },
+
+        watch: {
+            files: ['public_html/assets/sass/main.sass'],
+            tasks: ['sass', 'autoprefixer'],
+        }
+    });
+
+    grunt.loadNpmTasks('grunt-contrib-sass');
+    grunt.loadNpmTasks('grunt-autoprefixer');
+    grunt.loadNpmTasks('grunt-contrib-watch');
+
+    grunt.registerTask('default', ['sass', 'autoprefixer', 'watch']);
+};