Added Custom Calibration Pattern Module.
Added precomp header.
Added the precomp.hpp file.
Updated headers.
Cleared shadowing warning.
pre-merge
Merge branch 'gsoc' of https://github.com/Bellaktris/opencv_contrib into inpainting
images -> vectors in xphoto/inpainting
Swapped CV_RGB macro to Scalar.
Updated ITERATIVE -> SOLVEPNP_ITERATIVE.
Fixed windows warnings. Updated docs to include default detector/matcher.
make opencv_cudaarithm dependency for xfeatures2d optional
Enclose code in ccalib namespace. Switch defines to consts.
fixed float warning.
removed wildcards from fg/bg path in ICFDetector::train
seeds: add SEEDS superpixels implementation to ximgproc module
seeds: add documentation
seeds: add C++ and python samples
add gitignore (from opencv main repository)
interface-implementation pattern implemented