added bin/dmarc_lookup
set +x on bin/dmarc_lookup
Changes: updated
added validation for SPF input
progress on SQL data store for reports
v0.20130507

 - added sql and MySQL schema
 - added bin/dmarc_lookup
 - replaced Regexp::Common IP validation with Net::IP (perl 5.8 compat)
 - added Results.pm tests
 - added full section numbers to Draft quotes