Minor refactorings for type casting and exception handling.
Ditched "ClassUtil" (merged with Str).
Swapped out the mysqld binaries for MySQL v5.0.16.
Altered examples and tests to use new Connector/J 5.0 URL syntax for launching Connector/MXJ ("jdbc:mysql:mxj://")
Minor test tweaks
Reorganized utils into a single "Utils" collaborator.
Removed HelpOptionsParser's need to reference a MysqldResource.