[Merge] lp:~seb128/dialer-app/history-divider-spacing into lp:dialer-app

[Sebastien Bacher]

screenshot showing the change on https://launchpadlibrarian.net/207764718/views.jpg

basically the section headers are changed to use smaller text and less spacing
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https://code.launchpad.net/~seb128/dialer-app/history-divider-spacing/+merge/260587
Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~seb128/dialer-app/history-divider-spacing into lp:dialer-app.