Changed addUsersToGroups to make one request per group

closes #7
added portalSearch to utilities

added examples of building advanced queries in the Search Cheat Sheet
cleaning up whitespace
fixed totalResults parameter

It wasn't properly asking for a specific amount of results in the
search. Also, omitting now properly grabs all results.
removed logging
added search examples
Merge pull request #15 from ecaldwell/master

added search function and examples