KAZE and AKAZE integration initial commit
Prepare KAZE and AKAZE sources for integration
Added KAZE and AKAZE wrappers
Added unit-tests for KAZE and AKAZE features
Clean-up from unused utils.h/utils/cpp
Merge remote-tracking branch 'upstream/master'
Update crop_face.py

I propose some changes, to automate file cropping
disable GeneralizedHough tests on gcc 4.7
Merge pull request #2499 from mlyashko:back_proj_fix1
Merge pull request #2572 from jet47:gpu-generalized-hough
fix condition in CV_OperationsTest::operations1()
Merge pull request #2563 from alalek:ipp_builds
Prepare codes for ippicv library
Change deprecated functions to valid
Fix warning
Change deprecated function ippicviMulC_32f_C1IR to ippicviMulC_32f_C1R. Check results of ipp function, if error was return run opencv branch of code
Remove unused code
Remove unused code
Fix error BGRA2RGBA color convertion by ipp. Uncomment ipp color converstion, which pass tests
Check ippStsNoErr as result of ipp function instead >=0