v0.81

Version 0.81 (18/1/2015)

Added support for multiple models and including submodels in the main model.
Changed save file format to ldr/mpd (loading lcd is still supported).
Added support for loading models that with pieces that are scaled or mirrored.
Added support for loading ldrawunf.zip, just place it in the same folder that the library is.
Added toolbar button for toggling relative transformation mode.
Added support for more than 255 steps in a model.
Improved movement and rotation of pieces.
Added more pieces to the built-in library.
Fixed crash when adding pieces with very long descriptions.