[debian] packaging fixes
* remove postgresql-contrib from cubicweb dependency (using tsearch
which is included with postgres >= 8.3)
* add postgresql-client | mysql-client to cubicweb-server dependencies, necessary
for dump/restore of database
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile