Compressed textures, spray tool, new widgets

Recent news:

• Added the following types into math library: vec2d, vec2i, vec2ui, vec2ub, vec3d, vec3i, vec3ui, vec3ub, vec4d, vec4i, vec4ui, vec4ub, mat3d, mat4d, quatd, complexd.
• Support for DDS (DXT1, DXT3, DXT5, ATI1, ATI2 and uncompressed).
• Optimization of terrain shaders.
• Rename methods Render::project and Render::unproject to Render::toScreenSpace and Render::toWorldSpace
• Added container class DequePtr for manage a set of pointers.

GUI

• Two new widgets: WidgetContextMenu and WidgetTabs.

Editor

• Added spray tool for drawing on terrains or other surfaces with models. Support random rotation, orientation by terrain and delete brush mode.
• Added vertex animaion settings into material editor.

Tools

• Create new tool: DDSConverter. This tool converts all image resources in folder to appropriate dds format. Command line support.

And a few screens:

Material editor with tabs:

Mesh context menu: