Add /version to server and check it in client.

Will help detect client/version skew and prevent e2e test from passing
while running a version other than the one you think it's running.
Add support for stopping a proxier.
Merge pull request #682 from brendandburns/proxy

Add support for stopping a proxier.
Revert "Add support for stopping a proxier."
Merge pull request #693 from GoogleCloudPlatform/revert-682-proxy

Revert "Add support for stopping a proxier."
Fixing golint warnings
Merge pull request #695 from danmcp/fix_golint_warnings

Fixing golint warnings
Fixing typo
Merge pull request #698 from danmcp/fix_typos

Fixing typo
Merge pull request #627 from lavalamp/fix

Add /version to server and check it in client.
fix misspelling
third_party: update go-dockerclient

math.MaxInt64 represents 8 exabytes, which is a good limit for memory.
Also, this is the type used by Docker, so it's not possible to get any
value bigger than math.MaxInt64 as memory limit (both ram and swap) on a
Docker container.

Relevant discussion at #589 (more precisely,
https://github.com/GoogleCloudPlatform/kubernetes/pull/589#issuecomment-50640605).
Merge pull request #701 from SebastianM/misspelling

fix misspelling
Merge pull request #702 from fsouza/update-go-dockerclient

third_party: update go-dockerclient