OBMFULL-6145 obm-core for RHEL requires APC and Imagemagick.
OBMFULL-6104 Do like 6081 for occurrences

Port of OBMFULL-6097 to next branch.
OBMFULL-6187 : Adapt the obm ldap authentication for any LDAP Directory

  By default, obm is looking for the uid attribute as the user's login
  Now we can specify, the id attribute based on the LDAP Directory
  for the authentication.