release version 1.4.11
slightly improved AQL documentation
Merge remote-tracking branch 'origin/1.4' into devel

Conflicts:
	CHANGELOG
	Documentation/UserManual/Aql.md
	VERSION
	build.h
	configure
	configure.ac
	js/apps/system/aardvark/api-docs.json
	js/apps/system/aardvark/api-docs/batch.json
	js/apps/system/aardvark/api-docs/collection.json
	js/apps/system/aardvark/api-docs/cursor.json
	js/apps/system/aardvark/api-docs/database.json
	js/apps/system/aardvark/api-docs/document.json
	js/apps/system/aardvark/api-docs/edge.json
	js/apps/system/aardvark/api-docs/edges.json
	js/apps/system/aardvark/api-docs/endpoint.json
	js/apps/system/aardvark/api-docs/graph.json
	js/apps/system/aardvark/api-docs/index.json
	js/apps/system/aardvark/api-docs/job.json
	js/apps/system/aardvark/api-docs/replication.json
	js/apps/system/aardvark/api-docs/simple.json
	js/apps/system/aardvark/api-docs/system.json
	js/apps/system/aardvark/api-docs/traversal.json