add ``match *'' to match everything Rationale: sometimes it can be useful to globally bind a key. For instance, some users may like to bind on "C-<Up>" do "<Page_Up>" for every application.

add an error handler the default error handler violates the pledge "stdio" by trying to read (and possibly also write after) some files. Also, I don't like my program to be randomly killed if I try to get class hints on a window that doesn't have any.

initial commit