Add explicit argp dependency to serval-crypto package, to ensure argp-standalone builds first and linking succeeds.
Merge pull request #13 from opentechinstitute/serval-crypto-argp

Add argp-standalone dependency to serval-crypto Makefile. Tested, so minor that, on reflection, I'm just going to merge it.
Create README.md
Merge branch 'master' into feature-132 to get various build fixes.