For some reason the latest (still 2 years old) version of gamma does not accept .json at the end of API request URLs. This causes chalmers.it to fail whenever it tries to communicate with gamma.
This PR fixes this and also makes to docker files build as they failed with the old version of ruby.
For some reason the latest (still 2 years old) version of gamma does not accept .json at the end of API request URLs. This causes chalmers.it to fail whenever it tries to communicate with gamma.
This PR fixes this and also makes to docker files build as they failed with the old version of ruby.