Also adds minimal javadoc to classes.

See gh-1435

gh-1641: Fixed instructions for configuring EurekaIntanceConfig in AWS

Fixes gh-1663

* pull1656:
  Separate adding X-ForwardedProto header

Add X-Forwarded-Proto header in Zuul PreDecorationFilter even with X-Forwarded-Host header being absent

This reverts commit 46ee0ce1.

maintain multipart content type for data parts

Fixes gh-1581

As discovered in #1643, using `@Configuration` on a custom configuration with `@FeignClient` is unnecessary and creates extra work for exclusion from a `@ComponentScan`. This updates the docs to make this explicit.

A new version of httpclient introduced by boot changed the behaviour that previously allowed the charset. It now has to be parsed out and passed to the apache `ContentType` object explicitly.

fixes gh-1649

ZuulProperties.ZuulRoute consturctor missing explicitly setting of customSensitiveHeaders boolean

addressing issues/1636 ZuulProperties.ZuulRoute consturctor missing explicitly setting of customSensitiveHeaders boolean when provided with sensitiveHeaders

Remove check that does not apply Formatters to Collections

Hopefully this fixes flaky tests.

* pull1586:
  Adds composed @RequestMapping annotations support

Fixed short circuit condition to correctly detect @RequestMapping shortcuts (@GetMapping, @PostMaping etc.)

Fixes gh-1201

Configure a CompositeRouteLocator by default so it is easier to compose
multiple RouteLocators.

* gzip_decompression:
  Disables httpclient auto decompression of encoded data