Moved get_best_mimetype() to helpers.
Removed legacy decorators.
Removed obsolete DeserializingMixin.
Added MIMEMap.
MIMEMap copies properly.
Use new MIMEMap helper.
Cleaned up imports.
Use correct exception type for 406.
Fixed get_best_mimetype().
Whitespace fixes.
Renamed test functions for less confusion.
Added basic renderers implementation.
Fixed up error rendering.
Docs update on ContentNegotiation.
Fixed html rendering of HTTPExceptions.
Completed docs of __init__.py.
Finished docs on helpers.
Added renderer docs.
Fixed testcase.