Update GitHub project URLs

See https://groups.google.com/d/msg/pegjs/4a6zWKQSG6U/n8Pm257Lz6wJ.

I didn't update CHANGELOG.md as I consider issue URLs there historical artifacts
;-)

README.md

@@ -427,10 +427,10 @@ Development
 -----------
 
   * [Project website](http://pegjs.majda.cz/)
-  * [Wiki](https://github.com/dmajda/pegjs/wiki)
-  * [Source code](https://github.com/dmajda/pegjs)
+  * [Wiki](https://github.com/pegjs/pegjs/wiki)
+  * [Source code](https://github.com/pegjs/pegjs)
   * [Trello board](https://trello.com/board/peg-js/50a8eba48cf95d4957006b01)
-  * [Issue tracker](https://github.com/dmajda/pegjs/issues)
+  * [Issue tracker](https://github.com/pegjs/pegjs/issues)
   * [Google Group](http://groups.google.com/group/pegjs)
   * [Twitter](http://twitter.com/peg_js)
 

package.json

@@ -43,7 +43,7 @@
   },
   "repository":      {
     "type": "git",
-    "url":  "http://github.com/dmajda/pegjs.git"
+    "url":  "http://github.com/pegjs/pegjs.git"
   },
   "devDependencies": {
     "jasmine-node": "= 1.11.0",

spec/api/generated-parser-behavior.spec.js

@@ -856,7 +856,7 @@ describe("generated parser behavior", function() {
            * duplicates. This is why the following test uses three choices
            * instead of seemingly sufficient two.
            *
-           * See https://github.com/dmajda/pegjs/pull/146.
+           * See https://github.com/pegjs/pegjs/pull/146.
            */
           var parser = PEG.buildParser('start = "a" / "a" / "a"', options);