LDEV-2901, LDEV-2902: Move classes generated by Eclipse to different directory than Ant generated ones so they do not overlap and product errors.
Classpath in JAR/WAR manifests is not needed as JBoss Classloader takes care of dependencies. Manfiest was moved to a central location and is customised only with product name and version during JAR/WAR build.
LDEV-2839: In Content Repository project: Copy MANIFEST to conf/war directory so it is the same as in other projects. Remove xdoclet-build.xml file as it has multiple hardcoded library references and seems like just a old resource for testing, impossible to run with current configuration. Allow JSP precompilation.