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 switched to an https URL with a 2xx status. While the status was successful, your review is still recommended.

• http://maven.apache.org/xsd/maven-4.0.0.xsd with 7 occurrences migrated to:
  https://maven.apache.org/xsd/maven-4.0.0.xsd (https result 200).
• http://stackoverflow.com/questions/1593051/how-to-programmatically-determine-the-current-checked-out-git-branch with 1 occurrences migrated to:
  https://stackoverflow.com/questions/1593051/how-to-programmatically-determine-the-current-checked-out-git-branch (https result 200).
• http://stackoverflow.com/questions/29300806/a-bash-script-to-check-if-a-string-is-present-in-a-comma-separated-list-of-strin with 1 occurrences migrated to:
  https://stackoverflow.com/questions/29300806/a-bash-script-to-check-if-a-string-is-present-in-a-comma-separated-list-of-strin (https result 200).
• http://www.apache.org/licenses/LICENSE-2.0 with 2 occurrences migrated to:
  https://www.apache.org/licenses/LICENSE-2.0 (https result 200).

Ignored

These URLs were intentionally ignored.

• http://maven.apache.org/POM/4.0.0 with 14 occurrences
• http://www.w3.org/2001/XMLSchema-instance with 7 occurrences