Fix unit test for generating repository url in system/repositoryServer
url attribute.
add JEE server component of sub type 'primary library'.
revert signature of parseInternal to take untyped List.
- remove static update() method from internal
  DcPropertiesReaderDescriptor enum.
- change execute to call
  DcPropertiesReaderDescriptor.All.update(antHelper, component)
  for _each_ component (to update component from .dcdef), afterwards 
  check DC type for additional configuration files to update DC from
- tune pom a bit
- include dependency on xercesImpl to avoid class loading problems
  when parsing XML with Digester3
- configure hpi plugin to use plugin class loader first strategy
- set class loader of newly created Digester instances to plugin class 
  loader
reset source folders prior to parsing build.xml to avoid having relative
paths that would expanded later against the jenkins working directory.

At least when hpi:running the plugin this leads to unwanted source
paths...
formatting.
rename TestPropertyResolver to TestAnnotationResolver.
revert check of classes from java.lang package to use hash again.