Merge pull request #36 from Gottox/master

lib/initend.c: include now supports file globbing.
lib/initend.c: add Enno Boland to copyright.
NEWS: mention recent change made by Gottox.
lib/initend.c: move prototype to the correct place.
tests: new test for xbps-query(8) -Rf when binpkg is not available.
xbps-remove(8): -O,--clean-cache is now multithreaded.
xbps-remove(8): -n,--dry-run option does not need pkgdb write perms anymore.
pkgdb: added "repository-origin" obj to know its origin repository.
libxbps: file including in xbps.conf supports relative paths.