BUILD: Add fix for "Illegal instruction: 4" on iPhone 5 and iPad 4.

This binary patch fix is intended to allow testing in the interim on
A6/A6X devices until the OSX porter updates the toolchains to cope with
the newer iOS devices.
HOPKINS: Remove several magic values used for directions
HOPKINS: Rename variables and mild code rework in LinesManager
Merge git://github.com/scummvm/scummvm