Fix documentation of -I and -X options.
These options apply to all names, not just to directories. In other
words, you can do something like this:
hg add -X 'f*' '*.c'
and it will have the effect of "add all files matching *.c, except those
starting with f".
include hg
recursive-include mercurial *.py
include hgweb.cgi
include hgeditor rewrite-log
include tests/README tests/run-tests tests/test-*[a-z] tests/*.out
include *.txt
include templates/map templates/map-*[a-z]
include templates/*.tmpl
include doc/README doc/*.txt Makefile
recursive-include contrib *
include README
include CONTRIBUTORS
include COPYING
include TODO
include MANIFEST.in