- added missing mimetypes import

- request object's method names get_host and get_selector are now properties calles host and selector
- for windows we optionally depend on kerberos-sspi new version 0.2

kerberos auth had been called twice for the 0.14 requests version

final step in authentication has never been called and thus context w…

…as never cleaned which caused trouble when connection was reused

made rest dependend on xmla0.6

made rest dependend on xmla0.6

let nose handle the testing

update changes file for xmla 0.4

version 0.3