tests for URI escape/unescape code for glib

[Darin Adler <darin bentspoon com>]

I wanted to point out that gnome-vfs has tests for the URI escape 
functions and path utilities in it. The tests are in the files test-escape.
c and a small part of test-uri.c.

I'd really like to see tests for the glib versions too. It was hard to get 
these right, and the easiest way to illuminate various edge cases is tests,
 in my opinion. Many of the cases that Owen mentioned in his review of the 
code should have corresponding tests -- that way we'll know if we ever 
break them when "improving" these functions. I try to write tests first, 
then code, when possible.

    -- Darin