Bump dependencies versions

package.json

@@ -15,36 +15,36 @@
     "test": "test"
   },
   "dependencies": {
-    "async": "~0.8.0",
+    "async": "~0.9.0",
     "bignumber.js": "^2.0.0",
     "extend": "~1.2.1",
-    "lodash": "^2.4.1",
+    "lodash": "^3.1.0",
     "lru-cache": "~2.5.0",
     "ripple-wallet-generator": "1.0.1",
-    "ws": "~0.4.31",
+    "ws": "~0.7.1",
     "superagent": "^0.18.0"
   },
   "devDependencies": {
     "assert-diff": "0.0.4",
     "coveralls": "~2.10.0",
     "eslint": "^0.13.0",
-    "gulp": "~3.6.2",
-    "gulp-bump": "~0.1.10",
+    "gulp": "~3.8.10",
+    "gulp-bump": "~0.1.13",
     "gulp-clean-dest": "^0.1.0",
-    "gulp-concat": "~2.2.0",
+    "gulp-concat": "~2.4.3",
     "gulp-filelog": "^0.4.1",
     "gulp-flowtype": "^0.4.1",
     "gulp-plumber": "^0.6.6",
     "gulp-react": "^2.0.0",
     "gulp-rename": "~1.2.0",
-    "gulp-uglify": "~0.3.0",
-    "gulp-util": "^3.0.2",
-    "gulp-watch": "^3.0.0",
-    "istanbul": "~0.2.10",
+    "gulp-uglify": "~1.1.0",
+    "gulp-util": "^3.0.3",
+    "gulp-watch": "^4.1.0",
+    "istanbul": "~0.3.5",
     "map-stream": "~0.1.0",
-    "mocha": "~1.14.0",
+    "mocha": "~2.1.0",
     "nock": "^0.34.1",
-    "webpack": "~1.1.11",
+    "webpack": "~1.5.3",
     "yargs": "~1.3.1"
   },
   "scripts": {