Moved SubscriptionList to separate files
Allowed user to cancel TogglePause

Allow drag/drop shows from both Shows and Download lists as either completed files or names
Allow drag/drop subscriptions as text (and accept back)

Numerous refactor in subscriptions:
    Created convenience initializers from Dictionary, Show, Download, or String
    Parallel Add routines for subscriptionLIst (addSubsShows, Downloads, Strings, Patterns

Added copy command to Show list
Added cut/copy/paste (from Shows or Downloads) menu to Downloads (same as drag/drop)
Added cut/copy/paste (from Shows, downloads, or strings) menu to Subscriptions (same as drag/drop)
Added focus color to Lists