New RF1 segment and specs.
has attributes for the RF1 segment and specs for the same.
OBR segment cleanup and specs.
added parent_universal_service_identifier
PV1 segment cleanup and specs.
spec for PV1, add in convert_to_ts usage for date fields.
New PRD segment and specs.
has attributes for the prd segment and specs for the same.
PID segment cleanup and specs.
spec for PID (in particular the patient name) , remove idx from segment definition(supplied idx was buggy), added missing fields.
Merge pull request #25 from MEDrefer/rf1-segment

New RF1 segment and specs.
Merge pull request #22 from MEDrefer/prd-segment

New PRD segment and specs.
Merge pull request #24 from MEDrefer/obr-segment-fix

OBR segment cleanup and specs.
Merge pull request #23 from MEDrefer/pv1-segment

PV1 segment cleanup and specs.
Merge pull request #21 from MEDrefer/pid-segment-fix

PID segment cleanup and specs.
Removing old rubyforge links

Also added one link for updated documentation
Added missing fields to OBX segment and improved test

The performing_organization_address and performing_organization_medical_director were both missing from the OBX segment type as you can see by looking at this OBX definition http://www.interfaceware.com/hl7-standard/hl7-segment-OBX.html

I also improved the read test to check all fields of the OBX segment
Correct parse nested children
Merge pull request #9 from calebwoods/fix_obx_segment

Added missing fields to OBX segment and improved test
spec for evn, remove idx, and ensure that it is explicit. use convert_to_ts for date fields.