Fixed Warnings
Merge remote-tracking branch 'upstream/dev' into dev
Changed: X-ES-TrustedAuth to ES-TrustedAuth
Changed: X-ES-Position to ES-Position
Added: command/lson/env option --enable-trusted-auth
Merge branch 'dev' of github.com:EventStore/EventStore into dev
Refactoring: ES-TrustedAuth and ES-Position http headers name consts moved
to SystemHeaders
Fixed: empty feed page after polling behind the stream end content type is text
/plain while content is in text/html
Merge pull request #50 from jbradford/dev

Cleared up build warnings.
Removed unnecessary header include
Merge branch 'dev' of http://github.com/EventStore/EventStore into Windows-Build