We can now generate part families.

- README: added build prerequisites
- "part name" is now more correctly called "package name"
- changed keyword "part" to "package"
- removed inst_debug and struct inst_ops.debug functions - never really used 
  them anyway
- we can now generate multiple packages from a single file



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5478 99fdad57-331a-0410-800a-d7fa5415bdb3

fped.c

@@ -91,8 +91,8 @@ int main(int argc, char **argv)
 		usage(name);
 	}
 
-	if (!part_name)
-		part_name = stralloc("_");
+	if (!pkg_name)
+		pkg_name = stralloc("_");
 
 	reporter = report_to_stderr;
 	if (!instantiate())