#242 moveto doesn't notify per action flags

[Points]

moveto always notifies 'XXX has arrived.' For proper
behavior, it should check the calling action's flag
state to determine if the message is displayed or not,
as per an action-based movement without code.

[Kyle Hamilton]

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It should be easy to do this one -- if(!FLAGS(trigger) & DARK)?

What are all the situations that cause action-based movement
without code to not echo the 'XXX has arrived.'?

[Kyle Hamilton]

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Should we just create a MOVETO_TRIG or MOVETO_SILENT primitive?