adding 009 error vld, msvc examples
adding pre for 7 lection pptx
Merge branch 'lections' of github.com:sidorovis/cpp_craft_1013 into lections
adding to example boost test framework
adding example for valgrind demonstration
adding cpp 7 week lection pptx updates
resolving memoty leak connected with boost chrono
Merge branch 'lections'