JdbcDataSource: the methods setUrl and getUrl where added as aliases for setURL and getURL. This should solve problems with the HikariCP (Hikari connection pool).

git-svn-id: http://h2database.googlecode.com/svn/trunk@5352 e6896862-9d19-0410-bfb3-e9fa5d50e656
PostgreSQL compatibility: the PgServer was not working properly when the setting database_to_upper was set to false.

git-svn-id: http://h2database.googlecode.com/svn/trunk@5353 e6896862-9d19-0410-bfb3-e9fa5d50e656