Fix node 0.8.x (well npm 1.2.x) support

Author: thomseddon

package.json

@@ -18,14 +18,14 @@
   ],
   "main": "lib/oauth2server.js",
   "dependencies": {
-    "basic-auth": "0.0.1"
+    "basic-auth": "~0.0.1"
   },
   "devDependencies": {
-    "body-parser": "^1.3.1",
-    "express": "^4.4.3",
-    "mocha": "^1.20.1",
-    "should": "^4.0.4",
-    "supertest": "^0.13.0"
+    "body-parser": "~1.3.1",
+    "express": "~4.4.3",
+    "mocha": "~1.20.1",
+    "should": "~4.0.4",
+    "supertest": "~0.13.0"
   },
   "licenses": [
     {