Update dependencies

package.json

@@ -23,25 +23,25 @@
     "url": "http://github.com/Constellation/escodegen.git"
   },
   "dependencies": {
-    "esutils": "~1.0.0",
-    "estraverse": "~1.5.0",
-    "esprima": "~1.1.1"
+    "estraverse": "^1.5.0",
+    "esutils": "^1.1.0",
+    "esprima": "^1.2.2"
   },
   "optionalDependencies": {
     "source-map": "~0.1.33"
   },
   "devDependencies": {
     "esprima-moz": "*",
-    "semver": "*",
-    "chai": "~1.7.2",
-    "gulp": "~3.8.5",
-    "gulp-mocha": "~0.4.1",
-    "gulp-eslint": "~0.1.2",
-    "jshint-stylish": "~0.1.5",
-    "gulp-jshint": "~1.4.0",
-    "commonjs-everywhere": "~0.9.6",
-    "bluebird": "~1.2.0",
-    "bower-registry-client": "~0.2.0"
+    "semver": "^2.3.1",
+    "bluebird": "^2.1.3",
+    "jshint-stylish": "^0.2.0",
+    "chai": "^1.9.1",
+    "gulp-mocha": "^0.4.1",
+    "gulp-eslint": "^0.1.7",
+    "gulp": "^3.8.5",
+    "bower-registry-client": "^0.2.1",
+    "gulp-jshint": "^1.6.4",
+    "commonjs-everywhere": "^0.9.7"
   },
   "licenses": [
     {