URL Cleanup (spring-cloud#376)

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://jboss.org/schema/arquillian/arquillian_1_0.xsd with 1 occurrences migrated to:
  https://jboss.org/schema/arquillian/arquillian_1_0.xsd ([https](https://jboss.org/schema/arquillian/arquillian_1_0.xsd) result 301).
* [ ] http://repo.spring.io/libs-milestone-local with 2 occurrences migrated to:
  https://repo.spring.io/libs-milestone-local ([https](https://repo.spring.io/libs-milestone-local) result 302).
* [ ] http://repo.spring.io/libs-snapshot-local with 2 occurrences migrated to:
  https://repo.spring.io/libs-snapshot-local ([https](https://repo.spring.io/libs-snapshot-local) result 302).
* [ ] http://repo.spring.io/release with 1 occurrences migrated to:
  https://repo.spring.io/release ([https](https://repo.spring.io/release) result 302).

# Ignored
These URLs were intentionally ignored.

* http://jboss.org/schema/arquillian with 2 occurrences
* http://maven.apache.org/POM/4.0.0 with 42 occurrences
* http://www.w3.org/2001/XMLSchema-instance with 22 occurrences

Author: Spring Operator

.settings.xml

@@ -21,23 +21,23 @@
 		<repository>
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
-			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<url>https://repo.spring.io/libs-snapshot-local</url>
 			<snapshots>
 				<enabled>true</enabled>
 			</snapshots>
 		</repository>
 		<repository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
-			<url>http://repo.spring.io/libs-milestone-local</url>
+			<url>https://repo.spring.io/libs-milestone-local</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>
 		</repository>
 		<repository>
 			<id>spring-releases</id>
 			<name>Spring Releases</name>
-			<url>http://repo.spring.io/release</url>
+			<url>https://repo.spring.io/release</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>
@@ -47,15 +47,15 @@
 		<pluginRepository>
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
-			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<url>https://repo.spring.io/libs-snapshot-local</url>
 			<snapshots>
 				<enabled>true</enabled>
 			</snapshots>
 		</pluginRepository>
 		<pluginRepository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
-			<url>http://repo.spring.io/libs-milestone-local</url>
+			<url>https://repo.spring.io/libs-milestone-local</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>

spring-cloud-kubernetes-examples/kubernetes-hello-world-example/src/test/resources/arquillian.xml

@@ -2,7 +2,7 @@
 <arquillian xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 			xmlns="http://jboss.org/schema/arquillian"
 			xsi:schemaLocation="http://jboss.org/schema/arquillian
-    http://jboss.org/schema/arquillian/arquillian_1_0.xsd">
+    https://jboss.org/schema/arquillian/arquillian_1_0.xsd">
 
 	<extension qualifier="openshift">
 		<property name="namespace.use.existing">it</property>