URL Cleanup

[spring-operator]

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 fixed successfully.

• http://repo.springsource.org/libs-milestone migrated to:
  https://repo.springsource.org/libs-milestone (https result 301).
• http://repo.hortonworks.com/content/repositories/jetty-hadoop migrated to:
  https://repo.hortonworks.com/content/repositories/jetty-hadoop (https result 302).
• http://repo.hortonworks.com/content/repositories/releases migrated to:
  https://repo.hortonworks.com/content/repositories/releases (https result 302).
• http://repo.spring.io/libs-milestone migrated to:
  https://repo.spring.io/libs-milestone (https result 302).
• http://repo.spring.io/libs-release migrated to:
  https://repo.spring.io/libs-release (https result 302).
• http://repo.spring.io/plugins-release migrated to:
  https://repo.spring.io/plugins-release (https result 302).

Ignored

These URLs were intentionally ignored.

• http://maven.apache.org/POM/4.0.0
• http://maven.apache.org/xsd/maven-4.0.0.xsd
• http://www.w3.org/2001/XMLSchema-instance