fixing bug #1987(android keeps RGBA in alpha pre-multiplied form, Mat <-> Bitmap should handle this correctly)

cvtColor: dst channels number default is set to 4 for RGBA/BGRA cases; added new codes for yuv420 to RGBA/BGRA.

replaced "const InputArray&" => "InputArray"; made InputArray and OutputArray references. added "None()" constant (no array()).

added 16-bit support to Bayer2RGB & Bayer2Gray (ticket #686); fixed bug in cv.CreateHist() when no ranges are passed (ticket #990)

a big patch; use special proxy types (Input/OutputArray, Input/OutputArrayOfArrays) for passing in vectors, matrices etc.

fixed border processing bayer2rgb & bayer2gray; made the test "color-bayer" pass; renamed CV_Bayer*2Gray -> CV_Bayer*2GRAY for consistency

SSE2 optimization for Bayer->RGB; added Bayer->Gray with SSE2 optimization; corrected some bugs noted in the yahoogroups forum

fixed canny test; fixed mhi-global test & implementation (hopefully, for the last time); added sse 4.1 & 4.2 support (not working in Xcode for some reason); moved splineInterpolation to color.cpp; fixed a few bugs in documentation

fixed bug with Mat::dataend initialization. Now morph-ex test passes; Also fixed CV_Assert() implementation

fixed Mat::Mat(const IplImage*, bool) constructor (ticket #487). fixed the bayer demosaicing part in the new cv::cvtColor implementation

rewrote color conversion functions; added sRGB<->CIE Lab/Luv conversion; added RGB<->YUV conversion; improved [s]RGB->Lab conversion speed