Fixes #3906 - Fix migration script in order to migration eventlogs from version 1
Merge pull request #116 from nperron/bug_3906/int/fix_eventlog_flag_to_permit_migration_from_v1

Fixes #3906 - Fix migration script in order to migration eventlogs from version 1
Merge branch 'branches/rudder/2.4' into branches/rudder/2.6