fix(deps): update to latest pm2 and chalk

package.json

@@ -21,10 +21,10 @@
   "author": "Mozilla (https://mozilla.org/)",
   "license": "MPL-2.0",
   "dependencies": {
-    "chalk": "1.0.0",
+    "chalk": "1.1.1",
     "firefox-profile": "0.3.11",
     "minimist": "1.1.1",
-    "pm2": "0.14.3",
+    "pm2": "0.15.7",
     "selenium-standalone": "4.4.0",
     "tail": "0.4.0",
     "webdriverio": "2.4.5"