move ExtractModelTask.groovy to ModelExtractorTask.java (groovy is too dynamic, I need static type checking)
+ files (output) is a FileTree with relative path to outDir => easy to use with copy, jar,...
MTLLoader -> MTLLoaderExt :
* add support for '/' and '\' in the name
* try to load the texture with preferred extensions before the original to allow pre-conversion (tga -> dds) before loading
* try to load texture in lowerCase because some Windows Exporter doesn't care of case. so a pre-renamming can be done before loading
ModelViewer : change setup
* with ambient Light + Directionnal Light
* add a grid 10x10 with one unit cell to see/check scale of the model
* move the start position of the camera
gitignore : add tmp, *.off, *.orig
ModelExtractorTask: output files with relative path, add support for scale
force jdk 1.7
improve pipeline for asset from zip -> bintray