* Add context.HandlerNames()
This change adds a HandlerNames method that will return all registered handles in the context, in descending order
This is useful for debugging and troubleshooting purposes, especially in large apps
* Tests
Add tests for HandlerNames
* Fix HandlerNames test
* Simplify test
* fix Context.Next() - recheck len of handlers every iteration
* add tests when Context.reset() can be called inside of handler
TestEngineHandleContext
TestContextResetInHandler
TestRouterStaticFSFileNotFound
* Context.Next() - format to while style
When `gin.Context.FormFile("...")` is called the `engine.MaxMultipartMemory` is never used. This PR makes sure that the `MaxMultipartMemory` is passed and removes 2 calls to `http.Request.ParseForm` since they are called from `http.Request.ParseMultipartForm`
`Gin` now have the `protobufBinding` function to check the request format, but didn't have a protobuf response function like `c.YAML()`.
In our company [ByteDance](http://bytedance.com/), the largest internet company using golang in China, we use `gin` to transfer __Protobuf__ instead of __Json__, we have to write some internal library to make some wrappers to achieve that, and the code is not elegant. So we really want such a feature.
* support query map
* add GetQueryMap and unittest
* support post-form map
* add readme for query map
* attempt to fix bug for post-form map when go version is 1.6
* remove duplicate code
* remove comment
* Add interface to read body bytes in binding
* Add BindingBody implementation for some binding
* Fix to use `BindBodyBytesKey` for key
* Revert "Fix to use `BindBodyBytesKey` for key"
This reverts commit 2c82901ceab6ae53730a3cfcd9839bee11a08f13.
* Use private-like key for body bytes
* Add tests for BindingBody & ShouldBindBodyWith
* Add note for README
* Remove redundant space between sentences
* feat(context): ShouldBind counterparts for Bind methods + tests
* docs(readme): Switch examples to use ShouldBind methods
Add section for bind methods types, explain difference in behavior.
Switch all `c.Bind` examples to use `c.ShouldBind`.
* update json-iterator revison to fix TestRenderIndentedJSON failed
* fix(test): add space between key and value as same as standard JSON.
* fix(test): add space between key and value as same as standard JSON.
* Add new function to Render interface for writing content type only
* Add support for the new function in Render interface for writing content-type only
* Fix unhandled merge conflict in context_test.go
* Update vendor.json
