ISSUE-97 fix upcoming product sort to hinor admin settings
Updated to correctly reduce any number of "&" or "&amp;" found in the link to one "&".
Updated to simplify running all tests from the command line

Disabled color output (does not always play well).
Added zcCommonTestResources.php as a bootstrap.
Added Catalog URL generation tests.
Cleaned up specified paths.
Updated to work as a phpunit bootstrap.

Cleaned up existing defined paths.
Added some defines for critical paths.
Now loads "defined_paths.php" to better emulate Zen Cart paths.
Most paths can be overridden locally.
Initial Commit of Unit Tests for Catalog URL generation.
Enabled running travis on this branch.
Disabled "Sauce"
Enable "URL Function" unit tests.
Moved PhpUnit test "support" files into their own folder.
Passing a blank page now generates an URL to the "site root".
This is supported by zen_href_link (catalog) and zen_atalog_href_link (admin).
Refactored to run PHPUnit tests in isolation mode.
Added tests for "SEFU" generation.
Added tests for zen_catalog_href_link (admin).
Updated to run "SEFU" for catalog URL generation from the admin.
Corrected class name.
Allow requests to the admin directory to be processed.
Revert generation of catalog root URL.
"empty" calls to zen_href_catalog_link now work!
Refactored zen_href_link in the admin to zen_admin_href_link.
Corrected a number of known issues with admin URL generation.
Added an observer and updated session tracking.
Cleaned up use of tabs / spaces.