Minor edits

Start woking on campus list features
commit before some refactors

1) replace app delegate ‘globals’ db url, database name with
singletons.  Yeah, you heard right.
2) refactor create view, compute view methods of cb helper to pass in
view name parameter
3) refactor couchbase helper to init with db url and database name
commit before refactors

1) replace app delegate ‘globals’ db url, database name with
singletons.  Yeah, you heard right.
2) refactor create view, compute view methods of cb helper to pass in
view name parameter
3) refactor couchbase helper to init with db url and database name
commit before refactors