modified edge, laplace and sobel programs to accept relative paths as input/output parameters, as well as edge accepting the minimum threshold as an input
Merge branch 'master' of https://github.com/johnmcconnell/imageanalyzer

Conflicts:
	third-party/opencv-2.4.9/laplace/CMakeCache.txt
	third-party/opencv-2.4.9/laplace/CMakeFiles/CMakeDirectoryInformation.cmake
	third-party/opencv-2.4.9/laplace/CMakeFiles/CMakeOutput.log
	third-party/opencv-2.4.9/laplace/CMakeFiles/Makefile.cmake
	third-party/opencv-2.4.9/laplace/CMakeFiles/Makefile2
	third-party/opencv-2.4.9/laplace/CMakeFiles/TargetDirectories.txt
	third-party/opencv-2.4.9/laplace/CMakeFiles/laplace.dir/CXX.includecache
	third-party/opencv-2.4.9/laplace/CMakeFiles/laplace.dir/DependInfo.cmake
	third-party/opencv-2.4.9/laplace/CMakeFiles/laplace.dir/build.make
	third-party/opencv-2.4.9/laplace/CMakeFiles/laplace.dir/depend.internal
	third-party/opencv-2.4.9/laplace/Makefile
	third-party/opencv-2.4.9/laplace/cmake_install.cmake
	third-party/opencv-2.4.9/laplace/laplace