Fixed shebangs, added error checking
added WebP library
added cpu-features for WebP
added CMakeLists.txt for build WebP
add Mersenne Twister random number generator
add dlobbing under *nix
add dlobbing for Windows
This code is based on https://github.com/prasannatsm/opencv code.
- added webp (lossy and lossless without alpha channel)
- added tests
added tests for WebP
added docs
Merge pull request #610 from AoD314:webp2
Merge pull request #622 from moshekaplan:python2_cleanups
Merge pull request #621 from cuda-geek:twister
Merge pull request #629 from cuda-geek:globbing
Move opengl iterop code to cv::ogl namespace

Fixed issues: #2737 #2848
Reword and merge pull request #625 from jet47/gpu-fixes