Fix: Collada Import of armatures only added the root bone

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@54474 954f8c5b-7b00-dc11-b283-0030488c597c
Smoke simulator: add more float precision checks to make sure other data types don't get messed up either. (Relating previous fire fixes)

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@54475 954f8c5b-7b00-dc11-b283-0030488c597c