WebGLRenderer: Added clearColor, clearDepth and clearStencil. See discussion in ef7ead99873d1a6059a21cb419484ce0ff8c1b89.
r64dev
Updated builds.
Made Sprites examples, hopefully, more clear. See discussion in ef7ead99873d1a6059a21cb419484ce0ff8c1b89.
Added clearColor, clearDepth and clearStencil placeholder methods to CanvasRenderer.
Updated builds.
Intial refactoring for WebGLShaders (See #4129)

- split up files
- added new files descriptions to docs
Docs: Fix broken links for new Shader files
Remove duplicated code in ShaderLib
Fix build path to Shader files
Small tweaks to periodic table example to control camera zoom behavior.
Vector3.get*FromMatrix() -> Vector3.setFromMatrix*()
Update docs to reflect change to default setting of 'alpha' from true to false made in 0ade4a1d3a2caa4987fb56af1040a7b034c15749.
Example: WebGL GPGPU Flocking Birds #4069
CanvasRenderer: Account for spirite rotation when computing clear area.
Merge branch 'gpgpu' of https://github.com/zz85/three.js into dev
Merge branch 'dev-periodic' of https://github.com/WestLangley/three.js into dev
Merge branch 'dev-vector3' of https://github.com/WestLangley/three.js into dev
Merge branch 'dev-canvas' of https://github.com/WestLangley/three.js into dev
Updated builds.