Improved build scripts.


git-svn-id: http://sbuild.tototec.de/svn/sbuild/trunk@623 024a02f7-42f7-40fc-9f58-65666d1f2450
Introduced new cmdline option "--jobs" to confiure the number of targets to execute in parallel.
Also changed Project API for method findTargets.


git-svn-id: http://sbuild.tototec.de/svn/sbuild/trunk@624 024a02f7-42f7-40fc-9f58-65666d1f2450