switch TriMesh2d index type to uint32_t for 64-bit compatibility.

Signed-off-by: Rich E <reakinator@gmail.com>
Use absolute bounds of elements when calculating group bounds.

This avoids including the document origin in instances including
when the group contains an image (whose bounds are 0, 0, w, h, but
whose absolute bounds are likely offset from 0, 0).
Merge pull request #352 from sansumbrella/svg-image

Use getBoundsAbsolute when finding svg::Group boundaries
Merge pull request #346 from reakinator/trimesh_uint32_t

Trimesh uint32_t instead of size_t
Adding missing FMOD iOS binaries