Create objects for library aliquots
Allow lookup by a sample name
Get all libraries associated with a study 
and look up irods, then put into separate objects
commandline script to initially populate db
command line script to update pb pipeline plus tests
use different irods queries depending on type of query
option to ignore common name
check if common name required before trying to create it
only get samples from warehouse if they have a common name
Merge pull request #49 from andrewjpage/pac_bio

Pac bio metadata tracking
Merge branch 'master' of github.com:sanger-pathogens/update_pipeline into vertres