added less compilation via watch, and a task which will build the less and jade, start the server, then watch for changes

package.json

@@ -16,7 +16,8 @@
     "mocha": "~1.17.1",
     "less-middleware": "~0.1.15",
     "grunt-contrib-watch": "~0.5.3",
-    "grunt-contrib-jade": "~0.10.0"
+    "grunt-contrib-jade": "~0.10.0",
+    "grunt-contrib-less": "~0.9.0"
   },
   "scripts": {
     "test": "grunt test",

src/kibana/apps/examples/styles/index.less

@@ -1,4 +1,4 @@
 #examples ng-include {
   display: block;
   margin: 10px;
-}
+}

src/kibana/styles/main.less

@@ -1,6 +1,6 @@
-@import '../../bower_components/bootstrap/less/bootstrap.less';
-@import '../../bower_components/bootstrap/less/theme.less';
+@import "../../bower_components/bootstrap/less/bootstrap.less";
+@import "../../bower_components/bootstrap/less/theme.less";
 
 body {
   margin: 25px;
-}
+}

tasks/config/less.js

@@ -0,0 +1,13 @@
+module.exports = {
+  src: {
+    src: [
+      '<%= app %>/styles/**/*.less',
+      '<%= app %>/apps/**/*.less'
+    ],
+    expand: true,
+    ext: '.css',
+    options: {
+      ieCompat: false
+    }
+  }
+};

tasks/config/watch.js

@@ -3,6 +3,10 @@ module.exports = function (grunt) {
     test: {
       files: ['<%= unitTestDir %>/*.jade', '<%= unitTestDir %>/**/*.js'],
       tasks: ['jade:test', 'mocha:unit']
+    },
+    src: {
+      files: ['<%= src %>'],
+      tasks: ['less']
     }
-  }
+  };
 };

tasks/default.js

@@ -1,4 +1,4 @@
 // Lint and build CSS
-module.exports = function(grunt) {
-  grunt.registerTask('default', ['jshint:source','test']);
+module.exports = function (grunt) {
+  grunt.registerTask('default', ['jshint:source', 'test']);
 };

tasks/dev.js

@@ -0,0 +1,3 @@
+module.exports = function (grunt) {
+  grunt.registerTask('dev', ['less', 'jade', 'connect:dev', 'watch']);
+};