all of the alignment (and simplification) related with:
   - common interface at the PlatformAgent level  (removed all more specialized operations here; instead they went to the driver level)
   - moved specific functionality to the driver level, in fact, most of which now in RSNPlatformDriver, with some very basic and common driver functionality in the PlatformDriver class (mainly related with unconfig/disconn/connected states).
  - all "get" operations now via get_resource while all "execute" ones via
  execute_resource.
merge upstream/master
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
merge upstream/master
fix preload stats
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #1002 from shenrie/master

Fixes and enhanced testing for resource policies including policies for related resources
Increases timeout values for ion_loader (again)
Merge pull request #1003 from lukecampbell/qc

Increases timeout values for ion_loader (again)
Merge pull request #984 from carueda/platform_agent_R2C4

Complete alignment of platform agent platform driver and RSN platform driver
add launch processing state to platform agent
instrument DAMS.assign_data_product
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #1005 from newbrough/preload_external_data

continue work on external datasets
fix typeo
Merge branch 'master' of github.com:ooici/coi-services into preload_external_data
Merge pull request #1006 from newbrough/preload_external_data

Preload external data
Merge pull request #1004 from MauriceManning/launching

add launch processing state to platform agent
Refactors tests for QC parsers, tests run real tables
Adds Stuck Value Test and major memory leak patch

PyDAP wasn't closing coverage instances and it was causing a HUGE memory
leak