Added 3 new srcs for problems etc
Create free-programming-books-se.md

Added Swedish as a Language, and a C++ book

Update free-programming-books-se.md

Removed (html book) ending

formatting changes

Added Swedish as a language

Added Swedish as a language under the Other Spoken Languages list
Merge branch 'master' of https://github.com/WizuO/free-programming-books