Update prebuilt submodule pointer.
[[ Bug 13583 ]] Copy files do not work with the iOS 8 sim.
[[ Bug 13584 ]] Simulator launches with incorrect version.
Merge branch 'bugfix-13584' into release-6.6.4
Upped version to 6.6.4-rc-2.
Merge branch 'bugfix-13590' of https://github.com/runrevpanos/livecode into bugfix-13590
Added IDE bugfix note.
Tweaks to get things compiling for all versions of iOS.
[[ Bug 13621 ]] Make sure we explicitly request access to contacts when using mobile Add/Remove/Find contact
[[ Bug 13621 ]] Removed unused code
[[ Bug 12464 ]] The effective screenrect returns incorrect values when hiding/showing keyboard on iOS.
Merge remote-tracking branch 'michael/bugfix-12464' into bugfix-12464
Merge remote-tracking branch 'panos/bugfix-13621' into bugfix-13621
Merge branch 'bugfix-12464' into release-6.6.4
Merge branch 'bugfix-13621' into release-6.6.4
[[ Bug 12142 ]] mobileSensorReading("location", false) fails in simulator
[[ Bug 13634 ]] Make sure screenshots are taken correctly when in non-portrait mode on iOS 8
[[ Bug 13639 ]] Make sure mobilepickcontact works under iOS 8
Cleaned up code
[[ Bug 13659 ]] Make sure we can interact with LC stacks when Voice Over is turned on
[[ Bug 13236 ]] When on iPad and the supported orientations for the app contain any of landscape right, landscape left, portrait upside down,
 then the photo-picker is displayed using the standard iOS fullscreen overlay view