[plasma-sdk] Make Qt5Test really optional, fix plasmate dependencies
Review Request #127365 - Created March 13, 2016 and submitted
KF5NewStuff, KF5Parts are only required for plasmate. Could not push KF5ItemModels down into plasmate without breaking build. Is it a problem with KDevPlatform linking?
Also, fixes reviewboardrc.
Built fine with and without plasmate.