Added version checker interface
inserted setUserAgent in each HTTP request
added APIVersion when call NewRegistry
Insert version checkers when call NewRegistry()
added client's kernel version
Removed an unnecessary error check.
Removed an unnecessary nil assignment
format in the user agent header should follow RFC 2616
reduce the number of string copy operations.
documentation.
add LXC version to docker info in debug mode
change dockercfg to json and support multiple auth remote
basic version of the /events endpoint
add timestamp and change untagged -> untag
add since for polling, rename some vars
add docs
getEvents a bit simpler
use non-blocking channel to prevent dead-lock and add test for server
Add tests for the api
add die event