[Cin] Automatically Save Snapshots To Current Project Directory

[ben at innovationplex.com]

As of right now, the default path for snapshots is /tmp (which means 
that they first have to be moved manually and then reimported into the 
project). It would make much more sense to save them to the current 
project directory by default.

I have tried setting it to ./ but this is the directory where cin was 
run from (my home folder in this case) and not the project directory.

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