making automation + GUI + play/write/touch generic and easily reusable.
Added bar controller to automation track controls (mostly relevant for MIDI CC, but added for gain and pan too Just Because).
Fixed glaring "redirect" list errors.
Fix plugin controls/automation loading.
git-svn-id: svn://localhost/ardour2/trunk@2080 d708f5d6-7413-0410-9779-e7cbd77b26cf
Things with automation parameters now inherit from Automatable, which handles serialization, fetching/adding/removing parameters, etc.
Use AutomationList everywhere instead of Curve, make Curve a member of AutomationList instead (towards other types of "Curve" needed for CC, among other things).
Work towards MIDI CC sending "automation" tracks.
git-svn-id: svn://localhost/ardour2/trunk@2069 d708f5d6-7413-0410-9779-e7cbd77b26cf