Merge branch 'server-446-better-thumbnail-quality' into 'master'

Improved generating of thumbnails

Closes genesys-server#446

See merge request !31
1 job for master in 1 minute (queued for 2 seconds)
Status Job ID Name Coverage
failed #30405
publish artifacts


Name Stage Failure
publish artifacts Deploy
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-gpg-plugin:1.5:sign (sign-artifacts) on project file-repository: Exit code: 2 -> [Help 1]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1]
ERROR: Job failed: exit code 1