Ability to add tubes into an existing tube rack
Require container to setup is_matrix_of
fix update rack action
specs for adding new tubes into an existing tube rack
require update_tube_rack_resource
Improve update tube rack specs to add some tubes
remove print
add doc
Bump version to 1.0.3
Merge pull request #4 from llh1/49989389_add_tubes_in_tube_rack_action

49989389 add tubes in tube rack action