iPad settings cell instead of toolbar button

I've removed the toolbar and added Settings button as a table cell - the same way as it is in iPhone. I find it easier to use and more compliant with the new design language of iOS 7.

If you insist on using the toolbar, then we should consider adding "About Breviary" to the toolbar as well. But I suggest to use the standard table cell for stuff like that.

Thanks :)


(Mmm, now I see this pull request contains two other unmerged commits from pull request #3. If you merge this one, the other can be ignored/deleted.)