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Fix tests behaviour of external authent
Add Gael to Authors
Document external datasources
Add missing properties in feedback report detail page
Hide all modules information in report detail page
Add missing translations
Document template view is already login required in mapentity
Provide a way to easily override Trek PDF template (fixes #780)
Add POIs on trek GPX (fixes #774)
Hide simple blocks title if empty (ref #873)
Show either zero, one or two depending on fields values (fixes #873)
Detail page : replace Maintenance by Works (fixes #889)
Detail page: interventions on paths are now grouped together (fixes #735)
Detail page : show intervention costs (ref #958, fixes #764)
Rename Project cost to global cost (ref #958)
Show project intervention total cost (fixes #958)
Merge branch '0.23' into develop

Conflicts:
	CHANGES
	VERSION
	docs/conf.py
	install.sh
Merge branch '873_hide_empty_blocks' into develop
Merge branch '889_maintenance_detail_page' into develop

Conflicts:
	CHANGES