Duplicate mesh fix

Fixed bug where having multiple objects use the same mesh data on Blender would result in multiple meshes being exported

v0.2.6

• Fixed crash when using Python version 3.5.2 and up (thanks to thbell for finding and fixing this: https://github.com/thbell)

v0.2.5: Fixed wrong size of exported COLOR attribute, was exporting 3 floats

• Fixed wrong size of exported COLOR attribute, was exporting 3 floats when LibGDX expect four.

v0.2.4.1: Ops, changed default log level to INFO again, was set to DEBUG last

• Ops, changed default log level to INFO again, was set to DEBUG last version.

v0.2.4: Added option to choose between old format and new format for UBJSON data

• Added option to choose between old format and new format for UBJSON data types (default is old format as in LibGDX, read 'Usage' section).

v0.2.3

• Added exporter option to apply modifiers during export. Original model won't be touched and exported model will be the one after applying modifiers.
• Support for handling vertices generated after applying modifiers.
  • Support for correctly applying the Mirror modifier. The mirrored vertices will either inherit the bone weights of the original vertices or if you have mirrored bones (bone.L and bone.R) and the modifier option Mirror Vertex Groups is checked the exporter will correctly weight the mirrored vertices to the mirrored bone instead of the original one.
  • Support for correctly applying other modifiers that create vertices like subsurf, solidify and bevel. Generated vertices will inherit bone weights from the original one.

v0.2.2

• 0.2.2
  • Fixed bug where using the same material on more than one mesh caused the exported to export the material multiple times.

v0.2.1

• 0.2.1
  • Overall performance increase in export task.

v0.2.0

• 0.2.0
  • Overall refactoring of the addon. New options should be easier to implement from now on.
  • The exporter now supports both text and binary G3D formats.
  • Added option to convert coordinate systems.
  • Adjusted material exporting to match the ones generated by the FBX-CONV tool.
  • The exporter no longer creates a default material for objects missing one, now a warning message appears when such case occurs.
  • Added option to limit the number of bones per vertex, respecting LibGDX default of 4.

v0.1.0

• 0.1.0
  • First release