API/ABI break for June 2011.

Rename some functions to reflect its description a bit better.

--HG--
rename : lib/repository_plist.c => lib/plist_fetch.c

bin/xbps-repo/main.c

@@ -201,7 +201,7 @@ main(int argc, char **argv)
 		if (argc != 2)
 			usage();
 
-		pkgd = xbps_repository_plist_find_pkg_dict(argv[1],
+		pkgd = xbps_repository_pool_dictionary_metadata_plist(argv[1],
 		    XBPS_PKGFILES);
 		if (pkgd == NULL) {
 			if (errno != ENOENT) {