Update package repository protocol

http://packages.zendframework.com redirects to https://packages.zendframework.com which causes composer to fail. (it doesn't follow the redirect and try to parse the HTML returned.)
Merge branch 'hotfix/989'

Close #989
Merge pull request #990 from semos/patch-1

Update package repository protocol
Merge branch 'hotfix/990' into develop

Forward port #990