Merge pull request #1 from godswearhats/master

Changed range indicator (e.g. 1-4 is now 1..4)
Added 'make test'
Fixed format arg
Use a better variable name in test/system/run
Merge pull request #2 from godswearhats/master

Renamed fieldx to pk
Merge pull request #3 from godswearhats/master

Modifications to make pk OS X friendly
Fix up automake for argp and darwin
Merge pull request #1 from johnmorrow/master

Merging from johnmorrow/pk