Blender Git Loki

Mesh remap: Fix two potential numeric issues in corner cases, and enhance poly projection.

Null-area face could generate an int overflow, and potential numerical imprecision in face area computation
could lead to negative number of rays-to-cast (though highly unlikely).

Also, use domnant axis of poly normal as 'flattening' one, instead of always using Z axis.

Points raised by Campbell, thanks!