[daisy] Switching to Java 1.5 for Daisy 2.0

[Bruno Dumon]

Hi,

After the previous poll and some asking around, I think we can now move
to Java 1.5 for Daisy 2.0 without disturbing anyone.

So from now on we can make use of features like generics, the enhanced
for loop, the concurrency API (instead of util-concurrent lib)
StringBuilder, enums (instead of enum pattern), and the build in JMX
support.

-- 
Bruno Dumon                             http://outerthought.org/
Outerthought - Open Source, Java & XML Competence Support Center
bruno at outerthought.org                          bruno at apache.org