v1.8.1
- sharepoint#101 Fix content-length header casing
- sharepoint#81 Move tests from travis to github
- sharepoint#85 Do not depend on sharepoint error messages
- sharepoint#89 Lower case the accept header
- sharepoint#93 Add a NTLM-only option
- sharepoint#98 Dig out error code from last reponse instead of relying on message