Fixes #4138: Set most of loggers to debug for reports executions
Merge pull request #367 from VinceMacBuche/bug_4138/change_to_debug

Fixes #4138: Set most of loggers to debug for reports executions
Fixes #4148: Fixes reporting when a report received is older than last
report treated
Merge pull request #368 from VinceMacBuche/bug_4148/Keep_old_date_if_newer_tahn_new_dates

Fixes #4148: Fixes reporting when a report received is older than last
Fixes #4151: Change default change message
Merge pull request #369 from VinceMacBuche/bug_4151/change_default_change_message

Fixes #4151: Change default change message
Merge branch 'branches/rudder/2.4' into branches/rudder/2.6
Merge branch 'branches/rudder/2.6' into branches/rudder/2.7
Merge branch 'branches/rudder/2.7' into branches/rudder/2.8

Conflicts:
	rudder-web/src/main/resources/configuration.properties.sample
Merge branch 'branches/rudder/2.8'