Merge branch 'release/0.2.7' into devel

* release/0.2.7:
  Update Gemfile.lock accordingly
  bump to version '0.2.7'
run commands for version:release

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
bump to version '0.2.8'

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Update Gemfile.lock accordingly

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Merge branch 'release/0.2.8' into production

* release/0.2.8:
  Update Gemfile.lock accordingly
  bump to version '0.2.8'
  run commands for version:release