convert strings to numbers w/ unary plus Fixes #19
dont add textures if there are none
Merge pull request #20 from nickdesaulniers/parseFloat

convert strings to numbers w/ unary plus Fixes #19
Merge pull request #21 from nickdesaulniers/textures

Textures
Rm development in favor of a development branch.
Update documentation for what to do when mesh doesn't have textures.
Bump version