page tags enhancements

[richard-jones]

The page tags are currently in an input box, but it would be better to have these in a textarea so you can see all the tags simultaneously.

Also, auto-complete and/or some kind of "select from existing tags"

[markmacgillivray]

agreed. not done yet, but an intended feature

[markmacgillivray]

dropping from current milestone as this is purely an enhancement

[markmacgillivray]

Done.