Merge pull request #1378 from mmeisinger/REL2.0

OOIION-1342. Remove two unused computed attributes
ooiion-1342 remove check of data_product_parameters_set as this attribute calc is disabled
Merge pull request #1380 from MauriceManning/fixtest_rebase2

ooiion-1342 remove check of data_product_parameters_set as this attribut...
ooiion-1347 fix platform state to be matched in the event to STATE_MONITORING
Merge pull request #1382 from MauriceManning/1347_rebase2

ooiion-1347 fix platform state to be matched in the event to STATE_MONIT...
Release Version 2.0.74
Bump Version to 2.0.75-dev
OOIION-1332 Skip dsa test until it is fixed.
Merge pull request #1383 from jamie-cyber1/skip_dsa_rebase2

OOIION-1332 Skip dsa test until it is fixed.
Patches preload issue OOIION-1344
Merge pull request #1386 from seman/preloader_rebase2

Patches preload issue OOIION-1344
Extends CTDPF test
Coverage Handler improvement to use newer API

Fixes the coverage handler for PyDAP to use the newer retrieval API in
the coverage model for retrieving the temporal parameter.
add driver egg name read only aparam
Merge pull request #1388 from lukecampbell/ctdpf-r2

OOIION-1336 ERDDAP - updates the PyDAP Coverage Model Handler to use smarter retrieval API
Merge pull request #1390 from edwardhunter/dvr_name_aparam_rebase2

OOIION-1329 Expose the driver version information to the user via an instrument agent parameter
Add schema info and capabilities test for new aparam.
OOIION-1356. Clear out agent_config in agent_instance of device extended resource
Adds test to verify locking issues with coverage
Changes default file-mode to read-only for coverage operations