Fixes #2545 : correct the description about compatibility of Apache2
Merge pull request #31 from ncharles/bug_2545/dev/apache_compatibility

Fixes #2545 : correct the description about compatibility of Apache2
Merge branch 'branches/rudder/2.3' into branches/rudder/2.4

* branches/rudder/2.3:
  Fixes #2545 : correct the description about compatibility of Apache2