Merge pull request #38 from abellotti/remove_unneccesary_xmlrpc_calls

Fixed issue where non-existent included attributes are refetched upon ac...
Fixed Issue with Flags being returned in Raw mode

When flags are requested via the :include_fields, they were
returned as raw instead of the hash.  Also, fixed issue where
duplicate_id was not seen in :include_fields as the lower
level service was updating that option with the BugZilla
equivalent of dupe_of.
Change from PR comment.

new method called from a class instance method, declared
as such and called without the qualifier.