Removed unused schemes.
KIF now builds for 64-bit.
UITouch-KIFAdditions now accesses ivars through the runtime API to avoid linker errors (for 64-bit only).
Fixed 64-bit conversion warnings.
Synthesizing fake UITouches now uses existing methods on UITouch instead of directly modifying ivars.
Fixed ivar free KIF on iOS6.

`-[UITouch setWindow:]` was wiping out some value internally, moving it
to the beginning fixes this.  I also reinstated some setTimestamp:
calls which were removed.
Merge commit 'ae84c2a7eebf1af6dc36ccbb0ec8c4d2ff4276bf'
Merge commit '534f9f089be09c48ca4802703329851c97571bca'
Merge commit 'b354041ab898a62107e2601f7a0eba87866adaba'