[daisy] Switching to Java 1.5 for Daisy 2.0

[Benjamin Hood]

>
>>       After Daisy 2.0 release, Does the client application which
uses the Daisy Java API also need to be upgraded to 1.5?
>
>Yes, indeed.

Is this necessarily the case? If you avoid using Java 1.5 features in
any interface definitions you could always just rely on the runtime
backwards compatibility (essentially the type erasure). Furthermore,
if you wanted to run any 1.5 source code on a 1.4 VM, you could
retroweave the 1.5 codebase during the build process when you build
for a 1.4 runtime (e.g. http://retroweaver.sourceforge.net/ ).

Ben