added ldapjs to package.json

services/web/package.json

@@ -19,6 +19,7 @@
     "express": "3.3.4",
     "fairy": "0.0.2",
     "jade": "~1.3.1",
+    "ldapjs": "^0.7.1",
     "logger-sharelatex": "git+https://github.com/sharelatex/logger-sharelatex.git#v1.0.0",
     "lynx": "0.1.1",
     "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.0.0",