clogger 0.0.4

The pure Ruby version now escapes with uppercase A-F
characters to match nginx log output.  There are now extra
checks against badly behaving Rack applications and 500
errors will be logged before TypeError is raised if the
application response does not conform (minimally) to Rack
expectations.  Finally, handling of $request (requests
without "HTTP_VERSION" set in the Rack env) should now be
logged correctly without unnecessary trailing characters.

Hackers: the primary git repository has been moved to
git://git.bogomips.org/clogger.git for now since I'm having
issues with pushing to Rubyforge (seems related to Support
Requests item #26185).