Release v0.23

Changes for v0.23

• Added URI::clickhouse. Thanks to Ilia Rassadin for the PR (#18).
• Changed the MySQL (and MariaDB) URI dbi_dsn() method to use DBD::MariaDB instead of DBD::mysql, because it better supports older MySQL client libraries and improves Unicode support.

Release v0.22

Changes for v0.22

• Changed Oracle database DBI parameter generation as follows:
• If there is not a hostname or port, just use the raw SID or service name as the database name: dbi:Oracle:$name. This is way 1 in the DBD::Oracle documentation
• If there is a hostname or port, use the EZCONNECT syntax. This is way 3 in the DBD::Oracle documentation. Use of a port without a host name may not be valid, but it seems most prudent to build an EZCONNECT that includes the port in this context and to let Oracle or DBD::Oracle reject it if appropriate. Thanks again to @vectro for the and diligence, testing, and patience with this issue (#22).