Make all add-ons CommonJS importable

- Fix #52
- Rename `npm/nodejs project` documentation to `CommonJS environment`

addons/attach/attach.js

@@ -7,7 +7,12 @@
  */
 
 (function (attach) {
-    if (typeof define == 'function') {
+    if (typeof exports === 'object' && typeof module === 'object') {
+        /*
+         * CommonJS environment
+         */
+        module.exports = attach.call(this);
+    } else if (typeof define == 'function') {
         /*
          * Require.js is available
          */

addons/fit/fit.js

@@ -12,7 +12,12 @@
  *               of columns)
  */
 (function (fit) {
-    if (typeof define == 'function') {
+    if (typeof exports === 'object' && typeof module === 'object') {
+        /*
+         * CommonJS environment
+         */
+        module.exports = fit.call(this);
+    } else if (typeof define == 'function') {
         /*
          * Require.js is available
          */

addons/fullscreen/fullscreen.js

@@ -11,7 +11,12 @@
  * fullscreen mode is being toggled.
  */
 (function (fullscreen) {
-    if (typeof define == 'function') {
+    if (typeof exports === 'object' && typeof module === 'object') {
+        /*
+         * CommonJS environment
+         */
+        module.exports = fullscreen.call(this);
+    } else if (typeof define == 'function') {
         /*
          * Require.js is available
          */
@@ -19,7 +24,7 @@
     } else {
         /*
          * Plain browser environment
-         */ 
+         */
         fullscreen(this.Xterm);
     }
 })(function (Xterm) {
@@ -36,4 +41,4 @@
 
       this.element.classList[fn]('fullscreen');
     };
-});
+});

addons/linkify/linkify.js

@@ -1,5 +1,10 @@
 (function (linkify) {
-    if (typeof define == 'function') {
+    if (typeof exports === 'object' && typeof module === 'object') {
+        /*
+         * CommonJS environment
+         */
+        module.exports = linkify.call(this);
+    } else if (typeof define == 'function') {
         /*
          * Require.js is available
          */

src/xterm.js

@@ -34,7 +34,7 @@
 (function (xterm) {
     if (typeof exports === 'object' && typeof module === 'object') {
         /*
-         * npm/nodejs project
+         * CommonJS environment
          */
         module.exports = xterm.call(this);
     } else if (typeof define == 'function') {