[#44287125] Add type and volume_max in tube
[#44287125] Add type and volume_max in tubes db table.
[#44287125] Add type and max_volume attributes for tube.
[#44287125] Add and fix specs for tube type and max_volume. Specs pass.
[#44287125] Update tube type and max volume.
[#44287125] Add plate type
[#44287125] Add specs for plate type
[#44287125] Filename renamed into update_plate_spec.rb
[#44287125] Add update_plate_spec.rb
[#44287125] Add few specs for plate type.
[#44287125] Revert initial changes.
[#44287125] Add migration to add tube type and max volume and plate type
[#44287125] Fix migration
Bump version
Code refactoring
Redifine and use is_array::==
Merge pull request #128 from maxigit/44287125_store_the_type_for_tube_and_plate

44287125 store the type for tube and plate