* First iteration to support new mechanism that needs to have the handle of the result.
* Most of the samples now build except "async". Also, everything is messed up.. need to understand the mustache way to handle this.
* New version to support play 2.8
* Fix conflict
* Fix error when multiple file in forms
* Update play framework minor version + scala + swagger-ui + Remove bugs in the url of swagger-ui.
* update samples
Co-authored-by: William Cheng <wing328hk@gmail.com>