fix some invalid HTML
update copyright notice of Frogsystem 2 for 2014
fix cause of some notices in press.php
fix invalid HTML in start-system.php
Merge pull request #101 from Thoronador/fix-fs2-copyright

update copyright notice of Frogsystem 2 for 2014
Merge pull request #102 from Thoronador/fix-warnings

fix cause of some notices in press.php
Merge pull request #103 from Thoronador/fix-validity

fix some invalid HTML