[Jamon-hackers] Removing java-1.5 support

[Ian R. <ian...@gm...>]

Java 1.6 was release in December of 2006. Java 1.5 entered end of life in
April 2008 and became de-supported in November of 2009.

I'm moving Jamon to a java-1.6 project. In particular, this means that
@Override annotations will be generated on methods that implement interface
methods. In theory, this could be done via a toggle switch, but the set of
users who would benefit from this would be small; I think we're at a point
where moving forward makes more sense than holding back.

  - Ian