Add rollup files

Author: l-lin

.gitignore

@@ -17,6 +17,8 @@ _temp
 !protractor*.js
 !systemjs.config.js
 !demo/src/**/*.js
+!rollup.conf.js
+!rollup-uglify.conf.js
 
 # angular-datatables specific
 *.js.map

rollup-uglify.conf.js

@@ -0,0 +1,21 @@
+import uglify from 'rollup-plugin-uglify';
+
+export default {
+    entry     : 'index.js',
+    dest      : 'bundles/angular-datatables.umd.min.js',
+    format    : 'umd',
+    external  : [
+        '@angular/core',
+        '@angular/platform-browser',
+        '@angular/common'
+    ],
+    globals   : {
+        '@angular/core': 'ng.core',
+        '@angular/platform-browser': 'ng.platform-browser',
+        '@angular/common': 'ng.common'
+    },
+    moduleName: 'angular.datatables',
+    plugins: [
+        uglify()
+    ]
+}

rollup.conf.js

@@ -0,0 +1,16 @@
+export default {
+    entry     : 'index.js',
+    dest      : 'bundles/angular-datatables.umd.js',
+    format    : 'umd',
+    external  : [
+        '@angular/core',
+        '@angular/platform-browser',
+        '@angular/common'
+    ],
+    globals   : {
+        '@angular/core': 'ng.core',
+        '@angular/platform-browser': 'ng.platform-browser',
+        '@angular/common': 'ng.common'
+    },
+    moduleName: 'angular.datatables'
+}