added the MIT licence in the generated files.

Gruntfile.js

@@ -1,4 +1,4 @@
-module.exports = function(grunt) {
+module.exports = function (grunt) {
 
 	// Project configuration.
 	grunt.initConfig({
@@ -18,7 +18,31 @@ module.exports = function(grunt) {
 		// ----------------------------------------------------------------------
 		concat: {
 			options: {
-				banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n',
+				banner: '/*! <%= pkg.name %> | build at <%= grunt.template.today("yyyy-mm-dd") %> */\n\n' +
+					'/*! \n' +
+					'The MIT License (MIT) \n' +
+					' \n' +
+					'Copyright (c) 2014 webcore-it \n' +
+					' \n' +
+					'Permission is hereby granted, free of charge, to any person obtaining a copy \n' +
+					'of this software and associated documentation files (the "Software"), to deal \n' +
+					'in the Software without restriction, including without limitation the rights \n' +
+					'to use, copy, modify, merge, publish, distribute, sublicense, and/or sell \n' +
+					'copies of the Software, and to permit persons to whom the Software is \n' +
+					'furnished to do so, subject to the following conditions: \n' +
+					' \n' +
+					'The above copyright notice and this permission notice shall be included in all \n' +
+					'copies or substantial portions of the Software. \n' +
+					' \n' +
+					'THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR \n' +
+					'IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, \n' +
+					'FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE \n' +
+					'AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER \n' +
+					'LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, \n' +
+					'OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE \n' +
+					'SOFTWARE. \n' +
+					'*/ \n\n',
+
 				stripBanners: true
 			},
 			src: {
@@ -29,7 +53,32 @@ module.exports = function(grunt) {
 		// ----------------------------------------------------------------------
 		uglify: {
 			options: {
-				banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n'
+				banner: '/*! <%= pkg.name %> | build at <%= grunt.template.today("yyyy-mm-dd") %> */\n\n' +
+					'/*! \n' +
+					'The MIT License (MIT) \n' +
+					' \n' +
+					'Copyright (c) 2014 webcore-it \n' +
+					' \n' +
+					'Permission is hereby granted, free of charge, to any person obtaining a copy \n' +
+					'of this software and associated documentation files (the "Software"), to deal \n' +
+					'in the Software without restriction, including without limitation the rights \n' +
+					'to use, copy, modify, merge, publish, distribute, sublicense, and/or sell \n' +
+					'copies of the Software, and to permit persons to whom the Software is \n' +
+					'furnished to do so, subject to the following conditions: \n' +
+					' \n' +
+					'The above copyright notice and this permission notice shall be included in all \n' +
+					'copies or substantial portions of the Software. \n' +
+					' \n' +
+					'THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR \n' +
+					'IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, \n' +
+					'FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE \n' +
+					'AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER \n' +
+					'LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, \n' +
+					'OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE \n' +
+					'SOFTWARE. \n' +
+					'*/ \n\n',
+
+				stripBanners: true
 			},
 			src: {
 				src: 'dist/<%= pkg.name %>.js',

dist/colorful-background-css-generator.js

@@ -1,27 +1,29 @@
-/*! colorful-background-css-generator 2014-09-12 */
-/*
-The MIT License (MIT)
-
-Copyright (c) 2014 webcore-it
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
+/*! colorful-background-css-generator | build at 2015-02-05 */
+
+/*! 
+The MIT License (MIT) 
+ 
+Copyright (c) 2014 webcore-it 
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal 
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions: 
+ 
+The above copyright notice and this permission notice shall be included in all 
+copies or substantial portions of the Software. 
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
+SOFTWARE. 
+*/ 
+
 function ColorfulBackgroundGenerator() {
 	/**
 	 * Holds all layers.
@@ -225,4 +227,4 @@ ColorfulBackgroundLayer.prototype.getDegreeForVendor = function(prefix) {
 	// linear-gradient is counting degrees clockwise. 0° is at the bottom side.
 	// (prefix === undefined)
 	return this.degree;	
-};
+};