Update xsp block to java 8 and fix minor bugs#36

jpuerto wants to merge 3 commits intoapache:trunkapache/cocoon:trunkfrom

jpuerto:update-xsp-block-to-java-8-and-fix-minor-bugsjpuerto/cocoon:update-xsp-block-to-java-8-and-fix-minor-bugsCopy head branch name to clipboard