Fixed EOI unit tests
saved values to avoid repeat evaluation
fixed handler to handle scalars out of a coverage
Fills in _manage_producers stub for DProcMS
Adds association: DataProcess -> Process

Conflicts:
	extern/ion-definitions
Fixed the producers issue with the new DataProcess framework

When the process is registered via DAMS, it not only looks at the data
process definition but more importantly at the data products to get the
parameters.
Bumped pyon
Bumped ion-defs
Refactored code to use updated governance in pyon
Refactored bootstrapper to use pyon governance helper functions
Merge pull request #608 from shenrie/master

Refactored code to use updated governance in pyon
Merge pull request #605 from mbarry02/transform_speed_up

saved values to avoid repeat evaluation
Merge pull request #603 from mbarry02/cov_handler_scalar_fix

fixed handler to handle scalars out of a coverage
Merge pull request #601 from lukecampbell/data_process_mgmt

Fills in stub method for data process work
Merge pull request #583 from tgiguere/fix_eoi_tests

Fixed EOI unit tests
merge from latest master solving a minor conflict in platform_agent