Commenting out simpleImageCheck stuff due to severe problems in responsive
theme handling.  Work on install routine with added indicies and
ccard_transactions table. (How did I forget that??)
Miscellaneous debugging.
Lots of changes to support new functionality in the login plugin.  Now
includes a user-accessible page to review and print purchased tickets,
with a menu item in the toolbar, and an admin-only AJAX function for
autocomplete search on the user name.  There are still some TODOs to be
worked, like buttons for printing tickets from the list, and resolving
some links.