Bumped pyon
Bumped ion-defs
Refactored agent tests to prevent duplicated test execution
Merge pull request #1039 from shenrie/master

Refactored agent tests to prevent duplicated test execution
Various fixes and improvements

I need another supporting structure for each of the parameter types and
unfortunately what I really need is a simulator that produces a TON of
this stuff and a driver.

Lays out the framework for effective instrument->DM testing
Merge pull request #1040 from lukecampbell/fixes

Fixes