osgi-bundles: the slf4j and the ant version differ from the ones in the main drools build

Since I am upgrading ant from 1.6.5 to 1.8.1 (to get the build working in maven 3),
I noticed that osgi-bundles uses a totally different version: 1.71

<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>com.springsource.org.apache.tools.ant</artifactId>
<version>1.7.1</version>
</dependency>

Also, slf4j is 1.6 in drools, but 1.5.10 for the osgi-bundles.
That could cause an ugly MethotNotFoundError at runtime (if someone on trunk start using the 1.6 new methods),
or bugs with the osgi users which we can't reproduce in the non-osgi bundles.

Mark, I am not sure how the osgi-bundles build works, but if you explain it's purpose to me, I can handle this issue.