[imp] Default Identity with LDAP

[Felipe W Damasio]

	Hi IMP Hackers,

	I installed Horde/IMP on my server to act as a webmail server.

	I added on imp/config/conf.php the "imp_expand_fromaddress" and 
"imp_expand_fullname" to get the mail address and fullname from our 
Active Directory through LDAP.

	If the "default Identity" is not set, IMP will get the proper info from 
these functions...however, when I go to "edit identity" and select the 
Default Identity, IMP does *not* get the info from these functions...

	Is this a known bug or am I doing something wrong?

	Thanks in advance,

Felipe