SDK fixes.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Merge branch 'master' of https://github.com/johnmccutchan/spectre
DebugDrawManager cleanups

Removed dead code.
Cleaned up documentation.
Make all optional parameters into named parameters.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fleshed out DebugDrawManager.addSphere
Merge pull request #67 from toji/debug-sphere

Fleshed out DebugDrawManager.addSphere
Add sphere debug draw to asset_pack demo.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Refactor line objects in debug draw manager.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fixing MeshImporter
Merge pull request #68 from donny-dont/features/mesh_importer

Fixing MeshImporter