make i18n build work ; add mackie dir back to build ; token work on amp for MIDI; don't try to subgroup route groups with MIDI (for now)

git-svn-id: svn://localhost/ardour2/branches/3.0@5412 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/surfaces/wscript

@@ -43,6 +43,7 @@ def configure(conf):
 def build(bld):
 	bld.add_subdirs('control_protocol')
 	bld.add_subdirs('generic_midi')
+	bld.add_subdirs('mackie')
 	if bld.env['BUILD_OSC']:
 		bld.add_subdirs('osc')
 	if bld.env['BUILD_POWERMATE']: