Use Windows-style line-endings (CRLF) instead of UNIX (LF).

Changelogs should be readable on Windows systems, which means that we
must use Windows-style line-endings.

Fixes #39.
Merge branch 'master' of github.com:ypcs/digabi-live

* 'master' of github.com:ypcs/digabi-live:
  Use Windows-style line-endings (CRLF) instead of UNIX (LF).