Add fabric target for updating translations.
Remove corner images, replace with border-radius
Remove corner image sprites, rename to header-logo.png
Remove unused and useless unit_tests endpoint.
MBS-7069: Buttons wrongly positioned on edit note tab of release editor
Merge branch 'translations-fabric' into beta

* translations-fabric:
  Add fabric target for updating translations.
Merge branch 'useless-unit-tests-endpoint' into beta

* useless-unit-tests-endpoint:
  Remove unused and useless unit_tests endpoint.
Merge remote-tracking branch 'bitmap/mbs-7069' into beta

* bitmap/mbs-7069:
  MBS-7069: Buttons wrongly positioned on edit note tab of release editor
Merge remote-tracking branch 'bitmap/remove-corner-images' into beta

* bitmap/remove-corner-images:
  Remove corner image sprites, rename to header-logo.png
  Remove corner images, replace with border-radius
Update translations from transifex.