Generalise ping-oml2 for easier porting

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Better exception/exit handling in ping-oml2

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Close OML4R channel on SystemExit

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Cleanup appDefinitions

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Generate version string from git tag

Based (as in recklessly cut and pasted) from omf_common, thanks Jack!

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Add ntpq-oml2 and app definition

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>