Feedback on HEAD actions

I did a whole review of actions module UI and then lost it. damn macbook. here is short version, from memory

BUGS
- I added a make sticky+save node actions upon comment insertion. i expected the source node to become sticky but it didn't. sticky action assignment did work as expected on the node tab.
- I got some error when creating a 'display message' action. I think a missing system_foo_validate function.

MISC - ASSIGN ACTION
- assign action should be default tab
- maybe change UI for comment.node etc. Put a form at top for adding action alonmg with operation and then a table of added actions.

CRON
- would be nice to show an action here

ACTION LIST
- assign author is not configurable? Assign to whom?

MISC
- the help text is same for all tabs but technically not right. I can't add a user action from comment tab