Fixed building on OSX 10.5 and newer
Added documentation for OSX Build fixes
Make import of Joint node hierarchies less strict
Make import of Joint node hierarchies less strict
removed fallback to name when neither sid nor id are given. Using name here makes no sense.
Revert "Make import of Joint node hierarchies less strict"

This reverts commit e2e8ec7c0eb18a40ebccd1fed856cea6da758a93.
Merge pull request #224 from gaiaclary/joints_without_sid

Make import of Joint node hierarchies less strict
Merge pull request #220 from gaiaclary/master

Fixed building on OSX 10.5 and newer