2008SP2 IIS| Add workaround for typo in metric name in windows
2008SP2 IIS| Explain more workaround
Expvar| Remove Expvar checks, will be included in another release
Merge branch 'master' into rudy/sp2-iis
Merge pull request #1051 from DataDog/rudy/sp2-iis

2008SP2 IIS| Add workaround for typo in metric name in windows
service_check_msg might not be set otherwise
Merge branch 'master' into Fix_bad_curl_behavior