Upgrade to clojure.java.jdbc 0.3.2.

This uses the current stable release of clojure.java.jdbc, which is unfortunately not backward compatible with the previous version ragtime used (0.2.3). To support this change in ragtime apps that use it must be able to upgrade to clojure.java.jdbc 0.3.x. The clojure.java.jdbc.deprecated namespace in that project includes the 0.2.x compatible functions to ease migration though.