sysmodelgen bugfix when drawing collections next to nested packages. Major revision to validation script checklinks.pl (it's now reliable). joinsysdef.pl now reports errors on duplicate IDs.

source,dst,type,pattern,sysdef
http://developer.symbian.org/oss/MCL/sf/app/photos/,/sf/app/photos,branch,RCL_3,layers.sysdef.xml