[omnipay] fix repository url
Update changelogs for v0.6.0
Merge pull request #635 from mikspark/omnipay-repo-url-634

[omnipay] fix repository url in composer.lock
Polish composer.json file for CoreBundle

Refs #658
Use protocol-less URL

To stay https-compliant ;)
Merge pull request #660 from winzou/patch-5

[Web] Use protocol-less URL in backend layout