Dates all display as Year/Month/day
Dates all display as Year/Month/day (including Search)
variable rename - dateTimeDisplayFormatExtJs
Merge branch 'issue-1156' into issue-1157
fixes #1159 Less strict typed in date formats on collection filters
issue-1157 Users can enter any date in ncWMS filters
Tests for allowing dates not in the collection time extent
code tidies
Merge branch 'master' into issue-1157

Conflicts:
	web-app/js/portal/filter/ResettableDate.js
	web-app/js/portal/lang/en.js
	web-app/js/portal/search/field/FacetedDateRange.js
Review changes. Better test for Dates outside extent
Merge pull request #1194 from aodn/issue-1157

Issue 1157
Move download estimator code to common base class