Extra/eDirectory.pm: fix typo, space police
Constant.pm: unbreak Novell eDirectory constants

Add forgotten =back / =over 4 around =head3.
FAQ.pod: don't talk of "2 lines" when there's only one
PersistentSearch.pm: use $message->pop_entry() in example
LDAP.pod: omit space from filter in synopsis
Constant.pm: add LDAP_CONTROL_RELAX
Control/Relax.pm: new
Control/ManageDsaIT.pm: update documentation & simplify a bit