Fix path for ZeroClipboard
Fix path for ZeroClipboard

If deployed as an CouchApp, the path for ZeroClipboard did not
match

Steps to reproduce:
 - run `grunt couchapp_deploy` with a Couch in Admin-Party
 - open http://localhost:5984/fauxton/_design/fauxton/index.html

Closes COUCHDB-2323

popojargo/couchdb-fauxton,robertkowalski/couchdb-fauxton,michellephung/couchdb-fauxton,michellephung/couchdb-fauxton,robertkowalski/couchdb-fauxton,cloudant/couchdb-fauxton,garrensmith/couchdb-fauxton,garrensmith/couchdb-fauxton,popojargo/couchdb-fauxton,apache/couchdb-fauxton,cloudant/couchdb-fauxton,cloudant/couchdb-fauxton,garrensmith/couchdb-fauxton,michellephung/couchdb-fauxton,benkeen/couchdb-fauxton,michellephung/couchdb-fauxton,robertkowalski/couchdb-fauxton,michellephung/couchdb-fauxton,popojargo/couchdb-fauxton,benkeen/couchdb-fauxton,popojargo/couchdb-fauxton,robertkowalski/couchdb-fauxton,cloudant/couchdb-fauxton,apache/couchdb-fauxton,benkeen/couchdb-fauxton,garrensmith/couchdb-fauxton,apache/couchdb-fauxton,apache/couchdb-fauxton