Merge pull request #61 from Sponk/master

Merge Wndows changes
* Some skybox fixes
Merge branch 'development' of https://github.com/Sponk/NeoEditor into development
* Better default angle for spot lights
+ Added basic configuration dialog
* Changed default theme to gtk+
+ Basic theme editing added
+ Basic setting loading and saving added
* Fixed build on Windows
+ Support for input profiles added
+ Basic french controls
+ French keyboard plugin added
* Compat shader improvements. More options in the config dialog
* Compat shader improvements
* First Emscripten changes
* Fixed bug when no plugin is loaded
* Uncommented experimental feature
* Only warp view if the double click is in the list or the 3D view.
+ Camera preview added
* Everything compiles now using emscripten