Remove `Uri_IP` module, superseded by the `ipaddr` package
Remove *.syntax in META file
Merge pull request #38 from avsm/remove-uri_ip

Remove `Uri_IP` module, superseded by the `ipaddr` package
Merge branch 'master' of git://github.com/dinosaure/ocaml-uri

Conflicts:
	lib/META
	setup.ml
sync autogen and CHANGES
Expose `Uri.with_scheme` function to modify scheme

Closes #40
Add `with_userinfo` functional setter