libmarblewidget-15.08.3-3.1

- Change in packaging. Make libmarblewidget a stand alone package.
  Therefore dropping the following files :
  * marble.spec
  * marble.changes
  * make_astro_coinstall.diff
  * fix-libastro-version-tagging.diff

- Update to KDE Applications 15.08.3
  * KDE Applications 15.08.3
  * https://www.kde.org/announcements/announce-applications-15.08.3.php
  * boo#954531

- Update to KDE Applications 15.08.2
  * KDE Applications 15.08.2
  * https://www.kde.org/announcements/announce-applications-15.08.2.php
- Include libastro due to dependencies

- Update to KDE Applications 15.08.1
  * KDE Applications 15.08.1
  * https://www.kde.org/announcements/announce-applications-15.08.1.php
- Drop upstream patch marble_fix_ppc64_build.patch

- Initial package to fullfil the buildrequirements for libkgeomap
  as it is still based on Qt4