rack_scan_model::fire() is now async.
Gets the orders from each tube rather than from the batch
removed all trace of a batch in rackscan_model
removed role update on input tubes
removed all sample_types other than "Cell Pellet" from cgap_lysed template
Merge pull request #267 from benoitmangili/hotfixes/scan_rack_updates_roles_on_rack_without_batch

Hotfixes/scan rack updates roles on rack without batch
Merge pull request #268 from david-allen-tessella/remove_sample_types_other_than_cell_pellet

Remove sample types other than cell pellet
make sure that the labellables are matching the tubes they have been created for, regardless of their orders
add sanity check when reading the manifest csv
tests fixed
Merge pull request #270 from benoitmangili/features/add_sanity_check_to_manifest_reader

Features/add sanity check to manifest reader
Change test user names to TEST_USER_#
Merge branch 'update_test_user_names'
Merge branch 'master' into production