- Disabling tests which have corresponding bugs in mono.
- Fixing a few tests which do not handle *nix file system.
- Updating Travis configuration to use mono's alpha bits.
- Introducing PlatformNormalizer to normalize content across multiple platforms.
This change simplifies InputFormatterContext/OutputFormatterContext by
swapping ActionContext for HttpContext.
This change is important especially for InputFormatterContext as it
decouples ModelState from ActionContext - allowing us to fix a
related bug where the _wrong_ ModelState can be passed in for a
TryUpdateModel operation.