[#41182989] Init commit for embedded label for tube
[#41182989] Refactored embedded label for tube

The specs are still failing for 
the other resources!!!
Fix session bug
Use Labellable#labels_to_stream
manual merge - updating development to latest version
fixed the problem caused the prev. manual merge
Merge remote-tracking branch 'sanger/development' into development
Merge remote-tracking branch 'sanger/development' into development
[#43299295] Removed mysql from gemspec
[#42717975] Add uuid in the json for embedded resource
[#42717975] Fix specs: add uuid in sample json
[#42717975] Display resource content for embedded resources
[#42717975] Display correctly the embedded resources
[#42717975] Fix
[#42717975] Fix plate specs to test correctly the embedded resource
[#42717975] Fix specs
add to_hash_stream method.
Fix merge conflicts
Merge pull request #79 from maxigit/42717975_expose_sample_uuid_in_the_plate_json

42717975 expose sample uuid in the plate json
Merge remote-tracking branch 'sanger/development' into development