Revert "Revert "Add support for stopping a proxier.""

This reverts commit 19beaf71b576b557f65960ec35086b9580a91221.
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).
Improve testing reliability
Merge pull request #701 from SebastianM/misspelling

fix misspelling
Split watch
Split async
Split operations test
Split index
Split interfaces
Split minion
Shorten variable name
Simplify helpers
Move prefix methods
Rename methods and move parseTimeout
Rename write -> writeJSON
Split operations code and add comments
Move handle* methods to their respective locations

Fix names
Add custom conversion function system.

As an example, demonstrate how Env.Key's deprecation ought to work.
Merge pull request #702 from fsouza/update-go-dockerclient

third_party: update go-dockerclient