added Flat UI components
version bump
swtiching to Flat styling. removing a lot of shadows, using consistent color scheme.
Added Flat UI css. added "all threads" flag/menu. lots of icon switches. added many btn-toolbar and btn-group for Flat UI design, and btn-primary
added fetchCount to thread collections. included last_message_datetime for when things change (want to switch to .version when API supports it)
added topflag. changed some inbox_zero words
added cancel event for thread-preview, holding off triggering Thread.delay or Thread.done until update actually succeeds
typo bugfix
fixed reply and compose, working now (though not nearly perfect). added lot_options and click events. checkCount now calls Api.count instead of simly useCollection.length. usePg bugfix on device.platform.