Remove duplicated arg
Allow the role to be specified when adding dbgroups from command line during 'bucardo add database'
When adding all tables, make sure we truly find the best db (previous check was not enough, as dbcols->{db} was often undef but existed)
Do not show connction failure message on install if we are trying a different user.
If the postgres user fails on install, try ENV{USER} - even in batch mode.
Allow :s and :t as valid shortcuts when specifying roles for a database