PIM-1773 Implemented a JobExecution normalizer
PIM-1773 Implemented a StepExecution normalizer
PIM-1773 JobExecutionNormalizer throws exception if cannot normalize step executions
PIM-1773 Used normalization context to translate step execution
PIM-1773 Shorten failure exceptions key of normalized job execution
PIM-1773 Register import export normalizers in the DIC
PIM-1773 Fixed normalization of the job execution's step executions collection
PIM-1773 Provided job execution json representation through action
PIM-1773 Added the isRunning property of job execution in the normalizer
PIM-1773 Backbonified the job execution report page
PIM-1773 Backbonified the job execution report status
PIM-1773 Translated the Step execution summary
PIM-1773 Backbonified job execution action buttons

Also displayed a refresh button after 120s if job hasn't finished (and
stopped polling after this timeout).
PIM-1773 Fixed a job execution related step
PIM-1773 Added translation keys of the job execution page
PIM-1773 Improved consistency of the job execution show url
PIM-1773 Fixed wrong colspan in the job execution page
PIM-1773 Restored warning message collapsability
PIM-1773 Fixed PHP CS
PIM-1773 Updated changelog