zuul.route -> zuul.routes
zuul.mapping -> zuul.prefix

removed classes now in spring-cloud-commons

Bean instantiation ordering was causing external (user-supplied)
filter beans to replace the defaults, not append to them. Separating
out the autowired map of beans into a spearate class was enough to
fix it.

Fixes gh-78

fixes gh-73

Also adds support for context paths in physical URL mappings, e.g.

zuul.route.http\://localhost\:8081/app=/stores/**

will result in a proxy forward of /stores/foo to
http://localhost:8081/app/stores/foo

Fixes gh-73

E.g.

zuul:
  route:
    testclient: /testing123/**         # service mapping
    http://localhost:8081: /stores/**  # physical mapping

You can bind to a Map<String,String> with application.yml, so there's
no need to work so hard to extract the zuul routes.

User can now list routes with /zuul/routes and reset with a
POST.

Fixes gh-75

Fire InstanceRegisterEvent after eureka registration, then components can listen for that event and safely access DiscoveryClient.

updated sidecar so the health and info urls go to sidecar, but homepage and non-secure-port go to local app

Conflicts:
	pom.xml
	spring-cloud-netflix-core/src/main/java/org/springframework/cloud/client/discovery/DiscoveryClient.java
	spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/eureka/EurekaDiscoveryClient.java

This allows mappings to be at the root and not have to be prefixed.  It also allows mappings to fall through to other handler mappings.  Patterns are now Ant-style via AntPathMatcher.

fixes gh-72

update versions of netflix libs

fixes gh-68

fixes gh-67