refactor hello world ui and server part
hello world code updated to scout 3.9
some hello world files amended
complete hello world tutorial (incl. code)
start hello world background chapter
add screenshots for tutorial background chapter
added tutorial background sections up to the server part
fix tex fils for html/epub output
add rayo back into helloworld project
server section in helloworld background chapter
start background section to helloworld tutorial
finish background to export scout app
completed tomcat deploy background
added bsi makefile