update README to latest requirements
Merge branch 'master' of github.com:mirage/mirage
update Dockerfile to work with current mirage-dev
Merge pull request #320 from lnmx/update-dockerfile

update Dockerfile to work with current mirage-dev
Added tracing support
Merge pull request #321 from talex5/profile

Added tracing support
Merge branch 'master' of github.com:mirage/mirage
Only build mirage-types if Io_page is also installed

Fixes failures such as:
https://travis-ci.org/ocaml/opam-repository/jobs/41615656
Merge pull request #324 from avsm/master

Only build mirage-types if Io_page is also installed
release 2.0.1
Merge pull request #325 from avsm/master

release 2.0.1
Merge branch 'master' of git://github.com/nojb/mirage into nojb-master
Reconcile the V1 and V2 interfaces and remove the V2 variants.
bump working version to 2.1.0
fix up the mirage-types META file
Further build fixes to remove V2 references
Merge branch 'master' of git://github.com/nojb/mirage

Conflicts:
	types/V1.mli
	types/V1_LWT.mli
STACK: fix configuration for IPv4
Rename STACK => NETSTACK