DATAKV-253 - 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://github.com/spring-projects/spring-data-keyvalue with 1 occurrences migrated to:
  https://github.com/spring-projects/spring-data-keyvalue ([https](https://github.com/spring-projects/spring-data-keyvalue) result 200).
* [ ] http://spring.io/blog with 1 occurrences migrated to:
  https://spring.io/blog ([https](https://spring.io/blog) result 200).
* [ ] http://stackoverflow.com/questions/tagged/spring-data-keyvalue with 1 occurrences migrated to:
  https://stackoverflow.com/questions/tagged/spring-data-keyvalue ([https](https://stackoverflow.com/questions/tagged/spring-data-keyvalue) result 200).
* [ ] http://www.ow2.org/ with 1 occurrences migrated to:
  https://www.ow2.org/ ([https](https://www.ow2.org/) result 200).
* [ ] http://contributor-covenant.org with 1 occurrences migrated to:
  https://contributor-covenant.org ([https](https://contributor-covenant.org) result 301).
* [ ] http://contributor-covenant.org/version/1/3/0/ with 1 occurrences migrated to:
  https://contributor-covenant.org/version/1/3/0/ ([https](https://contributor-covenant.org/version/1/3/0/) result 301).
* [ ] http://docs.spring.io/spring-framework/docs/ with 2 occurrences migrated to:
  https://docs.spring.io/spring-framework/docs/ ([https](https://docs.spring.io/spring-framework/docs/) result 301).
* [ ] http://help.github.com/forking with 1 occurrences migrated to:
  https://help.github.com/forking ([https](https://help.github.com/forking) result 301).
* [ ] http://projects.spring.io/spring-data with 1 occurrences migrated to:
  https://projects.spring.io/spring-data ([https](https://projects.spring.io/spring-data) result 301).
* [ ] http://repo.spring.io/libs-snapshot with 1 occurrences migrated to:
  https://repo.spring.io/libs-snapshot ([https](https://repo.spring.io/libs-snapshot) result 302).
* [ ] http://sourceforge.net/projects/cglib/files/cglib3/3.0/cglib-3.0.jar/download with 1 occurrences migrated to:
  https://sourceforge.net/projects/cglib/files/cglib3/3.0/cglib-3.0.jar/download ([https](https://sourceforge.net/projects/cglib/files/cglib3/3.0/cglib-3.0.jar/download) result 302).
* [ ] http://www.springsource.org/download with 1 occurrences migrated to:
  https://www.springsource.org/download ([https](https://www.springsource.org/download) result 302).

Original Pull Request: #39

src/main/asciidoc/index.adoc

@@ -4,7 +4,7 @@ Oliver Gierke; Thomas Darimont; Christoph Strobl; Jay Bryant
 :revdate: {localdate}
 ifdef::backend-epub3[:front-cover-image: image:epub-cover.png[Front Cover,1050,1600]]
 :spring-data-commons-docs: https://raw.githubusercontent.com/spring-projects/spring-data-commons/master/src/main/asciidoc
-:spring-framework-docs: http://docs.spring.io/spring-framework/docs/{springVersion}/spring-framework-reference/
+:spring-framework-docs: https://docs.spring.io/spring-framework/docs/{springVersion}/spring-framework-reference/
 
 (C) 2008-2019 The original authors.
 

src/main/asciidoc/key-value-repositories.adoc

@@ -1,4 +1,4 @@
-:spring-framework-docs: http://docs.spring.io/spring-framework/docs/{springVersion}/spring-framework-reference/
+:spring-framework-docs: https://docs.spring.io/spring-framework/docs/{springVersion}/spring-framework-reference/
 
 [[key-value]]
 = Key-Value Repositories

src/main/asciidoc/preface.adoc

@@ -5,7 +5,7 @@
 [preface]
 == Project Metadata
 
-* Version control: http://github.com/spring-projects/spring-data-keyvalue
+* Version control: https://github.com/spring-projects/spring-data-keyvalue
 * Bugtracker: https://jira.spring.io/browse/DATAKV
 * Release repository: https://repo.spring.io/libs-release
 * Milestone repository: https://repo.spring.io/libs-milestone

src/main/resources/license.txt

@@ -244,13 +244,13 @@ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 THE POSSIBILITY OF SUCH DAMAGE.
 
-Copyright (c) 1999-2009, OW2 Consortium <http://www.ow2.org/>
+Copyright (c) 1999-2009, OW2 Consortium <https://www.ow2.org/>
 
 
 >>> CGLIB 3.0 (cglib:cglib:3.0):
 
 Per the LICENSE file in the CGLIB JAR distribution downloaded from
-http://sourceforge.net/projects/cglib/files/cglib3/3.0/cglib-3.0.jar/download,
+https://sourceforge.net/projects/cglib/files/cglib3/3.0/cglib-3.0.jar/download,
 CGLIB 3.0 is licensed under the Apache License, version 2.0, the text of which
 is included above.
 
@@ -262,7 +262,7 @@ other similar licenses that require the source code and/or modifications to
 source code to be made available (as would be noted above), you may obtain a
 copy of the source code corresponding to the binaries for such open source
 components and modifications thereto, if any, (the "Source Files"), by
-downloading the Source Files from http://www.springsource.org/download, or by
+downloading the Source Files from https://www.springsource.org/download, or by
 sending a request, with your name and address to:
 
     VMware, Inc., 3401 Hillview Avenue