Version .05
* First implementation of DB::Introspector::SerializeUtil, which is used to
  cache DB::Introspector instances for those cases (when using Oracle) when
  metadata traversal is slow.

Version .04
* Implemented support for Indexes
* Fixed find_table bug (exploited when find_all_tables was called before find_table)
* Added more helpful comments in POD
* Added Test::Unit::TestRunner as a dependency of this project

Version .03
* Implemented MySQL support (Alpha)
* Handling type attributes (length, not null, etc)
* Refactored a bit out of CommonRDB and placed into Introspector.pm
