[Potlatch-dev] Testing new versions

[SomeoneElse]

This may be a silly question - asking for something that exists already, 
but just in case not:

How hard would it be have a version of Potlatch2 available after merging 
for "final testing" before becoming the default P2 version on the site?  
To be useful it'd need to be able to be invoked with a GPX file (not 
necessarily as another "edit" dropdown, though that'd be nice).  With 
the best will in the world, sometimes when fixing stuff other stuff 
breaks, and it'd be nice to be able to catch any issues before they go 
live for everyone.

Cheers,
Andy