Include java::default recipe to install Java

Java is required for Archiva, so as a result, we make sure to install
Java using the default recipe for the Java cookbook.

This installation can be customized in a wrapper cookbook, see the
Java cookbook’s docs on the necessary attributes to set.
Merge pull request #5 from evertrue/install-java

Include java::default recipe to install Java
Upgrade to Archiva 2.1.1

* Update jetty.xml config from Archiva 2.x package
* Ensure Java 7 is, in fact, installed
    - Java 7 (aka JDK 1.7) is required by Archiva 2.x
* Ensure all 32-bit things are removed
    - Lifted from the “official” Puppet module:
    - https://github.com/maestrodev/puppet-archiva/blob/d64f752f0cb445b7190357757eb5e83201590f89/manifests/init.pp