draft for docker container + fig.yml
implement background jobs with branch deletion
implement signal handling
implement tests for branch deletion
configuration for stage1
update dependencies
travis integration
implement update ssh key job
documentation on jobs
display button only if allowed to delete
update CHANGELOG
Merge pull request #75 from gitonomy/background-jobs

[RFR] Background jobs
fixes for docker image
restructure docker/ folder
fix an error when no role was found for user on project