project_into_recs.pl: replace ad hoc JSON encoding with JSON::XS
profile_into_recs.pl: move to JSON::XS for saner output
project_into_recs.pl: add GetOpt::Long and a QUIET_MODE flag for STDERR output
file_into_profiles.pl: phase one works, where the input (a file of URLs) gets each project downloaded and compared against the others. No profile requests made yet