bin/setup.sh - Download - Be less magical in unexpected situations
bin/setup.sh - Download - Be less magical in unexpected situations

If the developer has locally checked out a different branch of `mosaico`,
don't force them to switch.  Instead, display an error.  They can manually
run `grunt` if that's what they want.

veda-consulting/uk.co.vedaconsulting.mosaico,veda-consulting/uk.co.vedaconsulting.mosaico,rocxa/uk.co.vedaconsulting.mosaico,rocxa/uk.co.vedaconsulting.mosaico,veda-consulting/uk.co.vedaconsulting.mosaico,rocxa/uk.co.vedaconsulting.mosaico,veda-consulting/uk.co.vedaconsulting.mosaico,rocxa/uk.co.vedaconsulting.mosaico