rewrote bulk actions.  still some anomolies to work out.
rewrite process_bulk_action().  Appears to be working
added screen options; per-page
moved $this->podcasts to ppfm_list_table.php
bulk and rollover actions working separately.  Need to refactor.
screen options(show on screen) appears working
Refactor rollover and bulk-action functions

added is_array() check to bulk-action functions.  if $_GET['podcast'] is
not array, handle with code from rollover function.
Removed args from ppfm_list_table construct()

ppfm_list_table function no longer takes args.  must have missed that
when merging branches.
Formatted columns

enqueueing was not going well so I used admin_head and echoed the damn
style there.  It's a hundred degrees inside, mosquitos are pissing me
off and I need a cigarette.
Search is working - post_title only

added search box and adjusted podcast query to allow for search
Changes to contextual help

forgot that I had ever add the contextual help.  need to revisit when I
have time.