[#42646143] Refactor code between plate and container
[#42646143] Move well to_s in receptacle
[#42646143] Refactoring
[#42646143] Add TubeRack class
[#42646143] Add tube rack spec
[#42646143] Rename well to element
[#42646143] Overwrite []= method to add tube in the rack
[#42646143] Fix plate specs to use container methods
[#42646143] Small fixes
[#42646143] Error if a tube is replaced by an other one in the rack
Move un/pack_uuid methods
Replace include Container by is_matrix_of
Merge pull request #80 from maxigit/42646143_create_tuberack_in_the_core

42646143 create tuberack in the core
Bump version
[#42646511] Add action CreateTubeRack
[#42646511] Add CreateTubeRack spec
Bump to version 0.22.0 and update doc
Merge pull request #82 from maxigit/42646511_add_createtuberack_action

42646511 add createtuberack action
[#42227623] refactored create label action -step 1

Instead of location use an existing labellable
object as a parameter of the create label action.
Spec is failing!!! Should correct it.
[#42227623] override empty? method on labellable

We are always return false, so the labellable
is never empty.