DEBUG: Debugging tools

Debugging tools

File	Description
debug/backtrace.c	Code backtrace
debug/common.c	Shared debug code
debug/email.c	Dump an Email
debug/graphviz.c	Create a GraphViz dot file
debug/notify.c	Dump all notifications
debug/parse_test.c	Test the config parsing code
debug/window.c	Dump the details of the nested Windows