Update MS.Owin packages.
Update HttpClient packages.
Remove InvalidDataException, provided by Bcl package update/
Merge branch 'webapi' of https://github.com/damianh/ravendb into webapi

Conflicts:
	Raven.Database/Server/AppBuilderExtensions.cs
Fix dependency for owin 2.0.0.0
Use one handler for decompressing and compressing
Return the InterceptMiddleware for debugging
typo
Fix dealing with HttpException from the RequestManager
Make sure to get the correct content type and to get data for attachment for the content headers
Add IsDistinct check for index query
Fix so we take the content headers
workaround for IIS buffering - THIS IS BAD, WILL BE REMOVED