[Jdo Wiki] Update of "ChangeLog15" by CraigRussell

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= ChangeLog15 =
These are changes proposed for JDO 2.0.1 to better support JDK 1.5.

 1. Add to 6.3 a section requiring support for enum types, including subclasses of enum types.

 1. Change signatures of the following PersistenceManager methods to be generic. Note that these changes are source compatible with existing application programs.
||JDO 2.0||JDO 2.0.1||
||Object getObjectById (Class cls, Object key)|| <T> T getObjectById (Class<T> cls, Object key)||
 1. Add to 15.1 a paragraph describing that mapping an enum to a fixed-precision numeric type uses the ordinal() value for storage; mapping to a character column type (CHAR, VARCHAR, etc.) uses the name() value for storage.