Automatic merge from branch-5.2

* origin/branch-5.2:
  SONAR-6834 Purge CE_ACTIVITY when deleting a project
  SONAR-5876 Add l10n info for the metric
  SONAR-6414 Indexing tests should update updatedAt field
  SONAR-6824 Use SCM Info repo
  SONAR-5794 Send notification step should not use batch repo to get project name

diff --cc sonar-core/src/main/resources/org/sonar/l10n/core.properties
Simple merge