Merge pull request #240 from keithj/devel

Bugfix: Sequenom Publisher incorrectly complains about duplicate multiplex names
Allow caller workflows to vary the placeholder in .fam output using the fam_dummy option
Bugfix; correctly initialize info array for each dataset in PDF report
Make the definitions of fields in a .fam file more explicit
Merge pull request #241 from iainrb/devel

Vary the placeholder in .fam output
Merge remote-tracking branch 'wtsi-npg/devel' into devel