Shortcode Template editor:
- change button text to publish if the template is active, Update if its not, Create for new
- add status indicator showing if the template is new (draft), in use, not in use
- if the template is in use clicking 'in-use' shows which custom shortcodes are using it with links to edit them
Shortcode Template list
- sortable columns
- search box
Shortcode Template list
- tweaks
Shortcode Template list page:
- tweaks
Shortcode Template Edit page
- set title of popup preview box
Shortcode Template List page
- support duplicating template
Custom Shortcode Edit page
- show long and short form of shortcode when opening a saved one
- set title of popup preview box
Custom Shortcode List page
- added explanation text at top
- support duplicating shortcode
Small bug fix for failing failing ajax calls.  Small custom shortcode edit page tweak.