Implemented a fuller stub in AjaxTestCase for url_for because link_to calls url_for on all urls passed to it.  Tests that were testing different input types for the url were failing because of this.

Refactored ajax helpers so they use a little bit more coherent pattern; Removed code duplication from form_remote_tag

Applied Yehuda's patch; Sharing extract_object_name_for_form! between form_helper and ajax_helper; Added script_decorator helper

Implemented a fuller stub in AjaxTestCase for url_for because link_to calls url_for on all urls passed to it.  Tests that were testing different input types for the url were failing because of this.

Georgetown TimeZone is now mapped to "America/Guyana" instead of "America/Argentina/San_Juan" [#1821 status:resolved]

Signed-off-by: NYehuda Katz <wycats@Yehuda-Katz.local>