updated moonlib to the latest version and made changes to mknob.c to support accelerated displacing with tag

Conflicts:
	pd/src/g_graph.c

implemented improvement for empty lists as suggested by IOhannes http://lists.puredata.info/pipermail/pd-list/2013-02/101518.html

improved logic for freeing rtext that alleviates memory leak but also does not crash abstractions and gop objects (there are still memory leaks apparent in l2ork_output~ external which may be linked to individual objects having incomplete free functions). See http://sourceforge.net/tracker/?func=detail&aid=3605235&group_id=55736&atid=478070 for more info

fixed memory leak (see https://sourceforge.net/tracker/?func=detail&aid=3605235&group_id=55736&atid=478070)

further refinements to the zoom algorithm involving gop subpatchers and their required opening when zooming to ensure proper displacement of components (abstractions are unaffected)

improved/sped-up gop redrawing when using non-accelerated objects, fixed glitching when the two are mixed, improved zoom feature when using embedded patchers (since they share the same font size)

re-enabled Miller's proposed fix (still in testing stages as it did not exhibit itself as a problem beforehand)