Extracted libsmo from SchoolMessOrganizer
Added AUTHORS and COPYING
Create readme.md
Update readme.md
Removed libsmo
Readded libsmo as subproject

git-subtree-dir: libsmo
git-subtree-mainline: c2c2e60f7038a4bda806ade5870246b5d65ec09c
git-subtree-split: 5ac87a49c7f63c72e01f61ebf2abe52e87c62492
Fixed build process with libsmo subproject