[fix] Added Labellable related tests 

Labellable related tests was missing from the
new 'test system', so I added them.
Generated a fresh apiary.apib documentation.
Also removed accidentally committed examples folder.
[#46116569] Remove unnecessary keys in the json for list of resources
[#46116569] Fix specs
Merge pull request #126 from ke4/apiary_to_rspec

[fix] Added Labellable related tests
Merge pull request #127 from llh1/46116569_remove_unnecessary_keys_in_the_json

46116569 remove unnecessary keys in the json