New map type based on array map for debugging purpose

It checks multiple allocation and deallocation of map values and
some consistency.

todo:
clarification of debugging concepts
assertions - exceptions - debug
revision of attic/debug.h

motto:
testing is at least so important as coding

 version=2

 http://lemon.cs.elte.hu/data/lemon-(.*)\.tar\.gz	debian	uupdate