Write build-catalogue (c)make errors to stdout and stderr

[Helveg]

build-catalogue gobbled up the underlying (c)make output in the uncaught CalledProcessError.stderr and .stdout attributes.

[brenthuisman]

I'd prefer to have the shutil line in the try block, to keep the flow of the build in one consecutive block.

[Helveg]

There's an error, if verbose=True and there's an error then e.stderr and e.stdout are None because they weren't piped. Is it sufficient to just print Check the log above for the error? The way verbose works now is nice because you can follow the progress as it goes. To keep this "feature" we'd have to make a little event loop that uses p.communicate() to read the pipes.