Fixed memory leaks.

closes #148
Example showing lighting with normals.
Unused import.
fix atlas typo
Merge pull request #149 from fsbdev/patch-1

fix atlas typo
Removed rotation from the atlas used by the normal mapping test.
Merge branch 'origin/master'
New diffuse and normal map.
Normal map for eyes.
Slot and animation - color/alpha out of range fix. Normalizing color and alpha during load as both need to be in 0-1 range in the main loop.
Merge pull request #152 from scapix/master

Lua runtime - Slot and animation - color/alpha out of range fix.
Comments.
Avoid boxing in Skin dictionary.

closes #156
changed texture loaded to pass the current context.
Merge pull request #158 from agmcleod/master

changed texture loaded to pass the current context.
Refactored AttachmentLoader, allowing parameters per attachment type. Added attachment path. Added per attachment color.
Merge branch 'origin/master'
Fixed bounding boxes when slot has no attachment.
Merge branch 'master', remote-tracking branch 'upstream/master'