Avoid an error when vmd file has no valid camera/lamp data.
converted line feed code(CRLF) of source files to LF.
formatted the LICENSE document.
separate import pmx test
fix import pmx

change way to read Indexes
correct readIndexes
deleteTipBones causes Bug so default is now False
support RotationIK
fixed the bug that "face normals" of a model imported from pmx is inverse.
Merge https://github.com/sugiany/blender_mmd_tools into dev_import_Rigid

Conflicts:
	LICENSE
	mmd_tools/mmd_camera.py
	mmd_tools/test.py