Disable EDI message validation pending GIR segment support

The edi4r standards module (edi4r/standards.rb) does not recognize GIR
segments as valid.  Until I can resolve that, disable the validator when
finalizing our EDI messages.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Support copy-level data via GIR segments

EDI GIR segments allow us to encode copy-specific information in ORDERS
records.  This is usefulf or sending "enriched" order data to vendors.

Supported fields:

copy_id          -- internal ACQ copy id
fund             -- fund code
owning_lib       -- library code
call_number
item_type        -- AKA circ_modifier
copy_location    -- copy location name
quantity         -- when representing multiple copies per segment
barcode
collection_code  -- reserved for vendor-provided data

For reference, see http://www.editeur.org/31/Library-Book-Supply/,
section "Purchase Order for book orders".

Signed-off-by: Bill Erickson <berick@esilibrary.com>
put GIR segments in correct location WRT other lineitem fields

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Swap LSQ and LFH to better match vendor expectations

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Support local PO name as optional, alternate PO identifier

Signed-off-by: Bill Erickson <berick@esilibrary.com>
More GIR field rearranging to match vendor needs

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Gemspec now points to berick's github repo

Signed-off-by: Bill Erickson <berickxx@gmail.com>