inotify: Port of the C module to py3k.
This patch accomplishes the port of the inotify C module to py3k by #including
mercurial's util.h file, and by defining the necessary boilerplate code
required by py3k through conditional compilation.
inotify: Better implementation of the event string representation.
This patch reimplements the event_repr function. It got mostly rewritten to
eliminate the need for conditional compilation of the module when building in
py3k. The trick there (thanks to Antoine Pitrou) is to use the % operator to
let the python interpreter format the string to be returned.