[turba] tsv (tab separated values), pine and mulberry address support

[Liam Hoekenga]

Pine 4.44 appears to support exporting as vcards, which helps w/ the group 
entries, and the single entries flowing across multiple lines... but it still 
allows email addresses like the ones below.  A vcard entry w/ an email address 
like:

EMAIL:"J. User" <juser@example.com>

ends up in IMP's message headers looking like:

"J. User" <"\"J. User\" <juser"@example.com>>

if you retrieve the entry from your addressbook.  So tho I may have wasted time 
trying to impliment a native pine addressbook importer, I think I may have 
identified something that needs fixing address handling wise. :\

Liam



> - pine does stupid things when it writes it's addressbook - hence the reason
> I 
> couldn't use fgetcsv to handle importing data.  A line in a pine addressbook
> 
> might look like...
> 
> liamr     Hoekenga, Liam     "Liam R Hoekenga" <liamr@umich.edu>
> 
> where the quoted string is actually part of pine's email address field.
> I think that'll need to get parsed (using imap_rfc822_parse_adrlist?)
> 
> Pine also creates entries that look like this:
> liamr     Hoekenga, Liam     
>     "Liam R Hoekenga, BA Linguistics, University of Michigan"
> <liamr@umich.edu>