Update some comments
Release 0.5.3
Set library dirs properly in qtxdg-config and use files.
Merge branch 'freebsd'

* freebsd:
  Set library dirs properly in qtxdg-config and use files.
Install pkgconfig files to /usr/local/libdata/pkgconfig in FreeBSD.
Merge branch 'freebsd'

* freebsd:
  Install pkgconfig files to /usr/local/libdata/pkgconfig in FreeBSD.
Adds QTXDG_DEPRECATED macro

Signed-off-by: Luís Pereira <luis.artur.pereira@gmail.com>