add new parameters for specify source and target database backend

trying to be backward compatible but we can't anymore ignore config file and then connect immediately to oracle db when running with connection parameters
support connection to PostgreSQL backend
support getting table names from PostgreSQL
support getting sequence names from PostgreSQL
create array from custom types fetched from PostgreSQL
add PostgreSQL binary type
disable and enable indexes in Oracle, set time format and control parameters
disable and enable triggers and logging in Oracle
insert into Oracle tables - insert statement
insert into Oracle tables - timestamps
insert into Oracle tables - custom types
insert into Oracle tables - sequences
insert into Oracle tables - binaries
update documentation
print insert statement at once
insert binaries in procedure due to Oracle SQLPlus limits

and fix hex format
do not use substitution characters
cannot use hex characters in Oracle
Oracle SQLPlus fixes
Automatic commit of package [spacewalk-utils] release [2.3.9-1].