added Servlet 3 dependency

Importing this template application in Eclipse shows error as the snoop.jsp depends on the Servlet API. It will improve user first time experience.
Bug 1064631 - Wrap UID-based ip addresses and netclasses calculations
Merge pull request #5374 from shekhargulati/master

Merged by openshift-bot
Merge pull request #5470 from brenton/BZ1064631

Merged by openshift-bot