buildimage via Dockerfile
add buildimage example
buildimage returns a Image structure
fix latest version buildimage bug when content-type is application/json
fix review opinion
delete blank lines
add purestream function to get response without any opration on the data
parse build result with regular expression
remove blank lines
Merge branch 'master' of github.com:cheneydeng/go-dockerclient
all: gofmt -s -w .
authors: add cheneydeng