Add routing key for update plate message
Add well_attributes test table
Decode the aliquot quantity and type
Save the aliquot quantity in the well_attributes table, both on plate creation and plate update
Add updateplate routing rule
Add specs for updating well_attributes table
Bump version to 1.4.0
Improve specs
Create a row in well_attributes only if volume is not null
Merge pull request #59 from llh1/56215748_handle_volume_information_for_individual_wells

56215748 handle volume information for individual wells