change all refs to SimplifiedUserInfo and _UserData
Merge branch 'clean-up-namedtupledict-refs' into app-version-report+clean-up-namedtupledict-refs
Merge branch 'app-version-report' into app-version-report+clean-up-namedtupledict-refs

Conflicts:
	corehq/apps/reports/standard/deployments.py
Merge branch 'master' into clean-up-namedtupledict-refs

Conflicts:
	corehq/apps/reports/standard/deployments.py
Merge branch 'app-version-report+clean-up-namedtupledict-refs' into clean-up-namedtupledict-refs

Conflicts:
	corehq/apps/reports/standard/deployments.py
Merge pull request #3528 from dimagi/clean-up-namedtupledict-refs

change all refs to SimplifiedUserInfo and _UserData