Merge pull request #8 from brian-brazil/improve

Extend and standardise haproxy_exporter.
Merge pull request #9 from brian-brazil/improve

Add other/1xx, so you can know total responses from backends.
Add Dockerfile
Merge pull request #10 from prometheus/add-dockerfile

Add Dockerfile
Export weight.
Merge pull request #11 from brian-brazil/weight

Export weight.
Add -haproxy.timeout flag

This flag specifies the timeout when scraping the haproxy stats
endpoint.
Merge pull request #12 from prometheus/add-timeout

Add -haproxy.timeout flag
Fix: Actually use the newly introduced http.client
Merge pull request #13 from prometheus/fix-http-client

Fix: Actually use the newly introduced http.client
Set Deadline for http client

Without a deadline, if the request to haproxy succees but the connection
gets stale, the exporter becomes stale as well.
Update Go download path and enable curl redirects.
Update go from 1.2.1 to 1.4