Merge pull request #2 from clauniel/master

add 1.2 and 2
more work on 1.1, commit befor merge 1.2 and 2
Merge branch 'master' of https://github.com/skrogh/31606-handson9
1.1 and 3.1 done
source updated for ex 1.1 and 3.1
appendix added
markup fejl rettet
add 3.2
correct merge conflicts