refactored generalized hough (both CPU and GPU):

removed set/get methods from Algorithm (implement owns)
removed GHT_* enumeration
added gridTransform/gridCopy overloads for GlobPtrSz
added globPtr for GpuMat
added cudev::GpuMat_<T> support to Input/Output arrays
rewrote matrix operations with cudev module
Fixed CR line endings in non_linear_svms.rst.
Merge pull request #1260 from SpecLad:no-cr-master
Merge pull request #1162 from jet47:cudev-integration
Merge pull request #1149 from jet47:generalized-hough-refactoring
Merge https://github.com/Itseez/opencv