Fixes #3347 : store unexpanded and expanded version of variables for

Fixes #3350 : add the LDAP entries, and all repositories (ldap, xml, git) for Global Parameters

Fixes #3350 : add the LDAP entries, and all repositories (ldap, xml, git) for Global Parameters

Refs #3376 : minor web improvement

add eventlog parameters

Fixes #3376 : add Global Parameter into Rudder