Fixed JSKompactor with variables starting with ```_```
Port to Typescript step 3
Adding TypeScript support on BabylonJS project (inside BuildOurOwnBabylonJS solution)
BugFix and GC optimisation on CSG

I add functions to make operation on the same csg element. It avoids the clone of all the polygons and avoids GC event.
Merge pull request #185 from clementlevasseur/patch-1

BugFix and GC optimisation on CSG
New physics engine plugin system
Actions
Merge pull request #186 from nicolas-obre/TypeScript

Adding TypeScript support on BabylonJS project (inside BuildOurOwnBabylonJS solution)
More TS files converted
Merge branch 'master' of https://github.com/BabylonJS/Babylon.js
More TS files