Make some improvements on PathIntegrals.
Issue #9

Reviewed by: Diego Pinheiro
             Alexandre Rocha
Make some improvements on gl.js

Reviewed by: Alexandre Rocha
Import xy model

XY model - modified chess-board algorithm
(http://www.ibiblio.org/e-notes/webcl/mc/xy2.html)
Ported XY model to Webkit implementation

    * Changes to work in webkit implementation
    * Deleted cl_gl.js - using file in commons
    * constants for numbers
    * function to initialize spins images
    * Avoid unnecessary instances of typed arrays
    * Some improve in code style

    Reviewed by: Afonso Costa.
Update demos.txt

    * Including XY Model
Import 3D XY Model demo

From: http://www.ibiblio.org/e-notes/webcl/mc/xy3buf.html
Port 3D XY Model to WebKit-WebCL

Issue #13

  Reviewed by: Andre Loureiro
Added Ripple effect source code

Signed-off-by: Andre Luiz Viana Loureiro <andre.vl@samsung.com>
Setting the file format to unix pattern and fixing some code style

Signed-off-by: Andre Luiz Viana Loureiro <andre.vl@samsung.com>
wip

Signed-off-by: Andre Luiz Viana Loureiro <andre.vl@samsung.com>