qwt: version bump

Also add missing dependency for qgis4
libspatialite: version bump
libQGLViewer: version bump & cleanup
calibre: version bumped to 1.31.0.
calibre: add xdg-utils dependency
calibre: version bumped to 1.32.0.
akonadi: version bumped to 1.12.0.
calibre: version bumped to 1.33.0.
calibre: version bumped to 1.34.0.
smb4k: version bumped to 1.1.1.
qt4: version bumped to 4.8.6.
calibre: version bumped to 1.35.0.
calibre: version bumped to 1.36.0.
calibre: version bumped to 1.37.0.
calibre: version bumped to 1.38.0.
scribus: version bumped to 1.4.4.
calibre: version bumped to 1.39.0.
Merge pull request #18 from v4hn/calibre-xdg

calibre: add xdg-utils dependency
Merge pull request #17 from v4hn/qt4-mysql

qt4: Use mysql alias
Merge pull request #16 from v4hn/libspatialite

libspatialite: version bump