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

lib/transaction_sortdeps.c

@@ -179,7 +179,7 @@ again:
 			rv = ENOMEM;
 			break;
 		}
-		pkgnamedep = xbps_get_pkgpattern_name(str);
+		pkgnamedep = xbps_pkgpattern_name(str);
 		if (pkgnamedep == NULL) {
 			rv = ENOMEM;
 			break;