Fixes #4112: Prevent the upgrade to Rudder 2.8 from breaking due to an incompatible Technique/Promise
Merge pull request #169 from Kegeruneku/bug_4110/int/4110_restore_init_promises_on_2_8_non_accepted_upgrades

Fixes #4112: Prevent the upgrade to Rudder 2.8 from breaking due to an i...
fixes #4109: correct rudder agent cron name to be compliant with
dh_installcron
Merge pull request #172 from VinceMacBuche/bug/4109

fixes #4109: correct rudder agent cron name to be compliant with
Fixes #4110: Prevent a Rudder upgrade from breaking and old Rudder installation
Merge pull request #170 from Kegeruneku/bug_4110/int/4110_rsync_initial_promises_if_migration_from_old_to_2_8

Fixes #4110: Prevent a Rudder upgrade from breaking and old Rudder insta...
Merge branch 'branches/rudder/2.6' into branches/rudder/2.7
Merge branch 'branches/rudder/2.7' into branches/rudder/2.8