[Merge] lp:~seb128/software-properties/newtab-enable-proposed into lp:software-properties

[Sebastien Bacher]

the box/frame/alignement combo in the .ui is just a copy of what other tabs are using for consistency
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https://code.launchpad.net/~seb128/software-properties/newtab-enable-proposed/+merge/286626
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~seb128/software-properties/newtab-enable-proposed into lp:software-properties.