Display location only if address' fields are public
Merge commit 'refs/merge-requests/391' of git://gitorious.org/noosfero/noosfero into merge-requests/391
Profile#may_display_field_to: rewrite tests

   * Adding tests for the new location method
   * Moving tests from profile_helper_test to profile_test
   * Rewriting tests of profile_helper_test
Merge branch 'stable' of git://gitorious.org/noosfero/noosfero into travis