wrote the source for part 2
wrote part 2 of the tutorial
consistent headers
Merge pull request #7 from shackbarth/icecream

part 2 of the tutorial with the ice cream sample code written
updated version numbers
Merge pull request #8 from shackbarth/master

updated version numbers
issue #20874: Move "ppm" to publicy available "time expense"
issue #20874: fix extension name
Merge pull request #10 from shackbarth/20874b

issue #20874: Move "ppm" to publicy available "time expense"