Updated splash image to jpg

* Switched all splash image sizes to compressed .jpg for better loading times
Updated text content

* Updated all texts according to
	https://docs.google.com/a/mrmanner.eu/document/d/1IeGMxZWLJ7nywWnVbMHdWqZ2sINR8yy7tgu1FPl6QNs/edit#
* Added pdf with rules
Added rule pdf:s