sanger/sequencescape — pull request #470 by JamesGlover (2012-04-13 11:20:55+00:00)
Title: 27224545 add consent withdrawn flag to sample

Consent withdrawn flag added to sample:
* Clearly visible on sample page, sample index and studies sample index
* Visible in batch.xml, and sample.xml.
* Exposed to warehouse via sample
* Validation on order prevents creation of submissions containing samples
with withdrawn consent.