Screenshooter & Reporter put on classpath

- by default it makes screenshots when test fails
- put it into the target/screenshots directory
- make neat report, accessible under target/arquillian_report.html, which contains lot of valuable info with screenshots

Conflicts:
	metamer/ftest/pom.xml
dom4j:dom4j excluded from arquillian-suite-extension

- it is because of screenshooter, it need different version
- in master it is managed by richfaces/buil/build-resources pom.xml
- IHMO it can be workarounded in this way, because in the future whole qa will descendant of rf/pom.xml