Fix to bug "Attaching RLE-encoded .BMP images silently fails". Checking the follwoing in ANGELON_MOZ12_BRANCH: nsBMPDecoder.cpp : version 1.18 nsBMPDecoder.h : version 1.15 nsICODecoder.cpp : version 1.23 WITH THE PATCH TO http://bugzilla.mozilla.org/show_bug.cgi?id=192300 APPLIED git-svn-id: svn://10.0.0.236/branches/ANGELON_MOZ12_BRANCH@138014 18797224-902f-48f8-a5cc-f745e15eee43