update ex3
committing ex1 and ex2 as part of ex3
Merge branch 'master' of https://github.com/mattmilten/appfs
Merge pull request #7 from apfelix/master

Pull Request No. 2
ex3 comes from greiner-petter
Merge pull request #8 from AndreG-P/master

ex3 comes from greiner-petter
commit from ex 1 and ex 2 from gerwin
Merge pull request #9 from gerwinnor/master

commit from ex 1 and ex 2 from gerwin
Merge branch 'master' of https://github.com/mattmilten/appfs
add Ralf ex2
Merge pull request #10 from s6angrev/master

ex1 and ex2 as part of ex3
Merge pull request #11 from rallenz/master

add Ralf ex2
added source files for ex1 and ex2 for eifler
Merge pull request #12 from leoneifler/master

added source files for ex1 and ex2 for eifler
added exercise 1 and 2
Merge pull request #13 from KatharinaMoel/master

added exercise 1 and 2
mein Ordner
ordner löschen
code for ex1
code for ex2