URL Cleanup

This commit updates URLs to prefer the https protocol. Redirects are not followed to avoid accidentally expanding intentionally shortened URLs (i.e. if using a URL shortener).

# Fixed URLs

## Fixed Success
These URLs were switched to an https URL with a 2xx status. While the status was successful, your review is still recommended.

* [ ] http://cloud.spring.io/spring-cloud-static/spring-cloud.html with 1 occurrences migrated to:
  https://cloud.spring.io/spring-cloud-static/spring-cloud.html ([https](https://cloud.spring.io/spring-cloud-static/spring-cloud.html) result 200).
* [ ] http://example.com with 1 occurrences migrated to:
  https://example.com ([https](https://example.com) result 200).

# Ignored
These URLs were intentionally ignored.

* http://foo/bar with 1 occurrences
* http://localhost with 18 occurrences
* http://localhost:7777 with 1 occurrences
* http://localhost:8000/src/main/resources/health.json with 1 occurrences
* http://localhost:8080 with 1 occurrences
* http://localhost:8080/hystrix.stream with 1 occurrences
* http://localhost:8888 with 1 occurrences
* http://nosuchservice with 1 occurrences
* http://simple/ with 1 occurrences
* http://user with 2 occurrences
* http://user::password@localhost:8761/eureka/ with 1 occurrences

feign-eager-instantiation/src/main/java/demo/ExampleClient.java

@@ -4,7 +4,7 @@ import org.springframework.cloud.netflix.feign.FeignClient;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
-@FeignClient(name = "example", url = "http://example.com")
+@FeignClient(name = "example", url = "https://example.com")
 public interface ExampleClient {
 
     @RequestMapping(value = "/", method = RequestMethod.GET)