Make TicketList page 'immutable'; add refresh key

[mikepea]

Doing the API query to ensure the TIcketList page has up-to-date results is expensive, and makes the interface somewhat sluggish.

Instead, if we kept the cachedResults and had a 'refresh' option, we can work around this in an acceptable way.

'R' for refresh results.

[mikepea]

This is done.