Updates to text system sent one operation behind

I'm a developer for PadKeys Keyboard and am reporting a couple of bugs on behalf of users who've reported them to us thinking our keyboard was at fault. The user issue and analysis can be found on our support site.

[Word capitalization requested one operation late in bulleted list](http://support.padkeys.com/forums/292203-support-forum/suggestions/38121988-simplenote-and-autocapitalization)

[Selected text state updated one operation late](http://support.padkeys.com/forums/292203-support-forum/suggestions/38624623-padkeys-and-simplenote)

In both cases the issue seems to be SimpleNote sending updates to the iOS text system one operation late. It might be something to do with the sequencing or timing of the updating within the event loop.

Start with the two linked PadKeys support reports and reproduce the capitalization and selected-text cases in SimpleNote on iOS. Trace the sequencing and timing of updates sent to the iOS text system; done means both states update in the same operation rather than one operation late.

Written by the indexing model from the issue text.