Working version with improved content negotiation.
Added new error page designs.
Some final tweaking + documentation.
Replaced smiley with IE compatible one.
Finished documentation.
Merge branch 'develop' into tech/add-support-for-provided-content-types
Added changes.
Merge pull request #223 from ninjaframework/tech/add-support-for-provided-content-types

Tech/add support for provided content types