IPP_VERSION_MAJOR * 100 + IPP_VERSION_MINOR*10 + IPP_VERSION_UPDATE
to manage changes between updates more easily.

IPP_DISABLE_BLOCK was added to ease tracking of disabled IPP functions;

Made all STL usages explicit to be able automatically find all usages of
particular class or function.

Created perf tests for cornerHarris, cornerEigenValsAndVecs, goodFeaturesToTrack, adaptiveThreshold, HoughLines.