Scan classpath for Jersey resources with Spring and initialize the
Jersey filter with a jaxrs Application instead. (Fixes gh-399,
fixes gh-400)

This reverts commit 0d468b39.

ref gh-383

fixes gh-374

See gh-377

fixes gh-375

fixes gh-372

fixes gh-370

Should be no change for users of Boot 1.2 right now, but with this
patch it is possible to use 1.3 with the new conventions for metrics
(e.g. in particular exporting by declaring beans of type
MetricWriter)

fixes gh-353

fixes gh-347

fixes gh-348

 fixes gh-350

fixes gh-341

Fixed a typo in the doc

fixes gh-328

Reason why Eureka instance is not found, is not visible

Make creation of the RestClient LAZY as it is no always required (issue #312)

With the following configuration at `bootstrap.yaml`

```yaml

spring:
  application.name: spring-cloud-hystrix-dashboard
  profiles.active: prod
  cloud:
    config:
      discovery:
        enabled: true
        serviceId: spring-cloud-server-config-with-eureka
server.port: 9003

turbine:
  appConfig: some-service
  clusterNameExpression: 'default'
```

I wasn't able to see why Turbine can't find the instance. The reason was related to SPEL:

```
org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Property or field 'default' cannot be found on object of type 'com.netflix.appinfo.InstanceInfo' - maybe not public?
```

Anyways there was nothing there in the logs so maybe it should not be silenced like right now?