ZeroK-RTS/Zero-K — pull request #257 by xponen (2014-09-25 17:29:58+00:00)
Title: COFC: fix cam jumping when zooming off-map (when using ZoomTilt, but not -Freemode) by removing extra unnecessary off-map boundary check

Also, by using new ExtendedGroundHeight()/clamping function:
-a bit improve off-map zoom precision (when using Freemode, but not-ZoomTilt)
-reduce sliding when zooming off-map/map corner (when using ZoomTilt and Freemode) (but still can't pin-point cause)
tweaks:
-a bit increase zoom precision when using ZoomTilt (increase some looping to find ground height, only for ZoomTilt)