MIMParser: extract accession from TI, not NO
MIMParser: extract accession from TI, not NO

Having confirmed with Mag the two numbers should always be the same,
limit the parsing to TI - it contains everything we need.

Ensembl/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl