GEOT-4531: app-schema changes to allow 1D LineString with ToLineStringFunction.
Merge branch 'master' of https://github.com/geotools/geotools into rinimaster

Conflicts:
	modules/extension/app-schema/app-schema/src/main/resources/META-INF/services/org.opengis.filter.expression.Function
	modules/extension/app-schema/app-schema/src/test/java/org/geotools/filter/GeometryFunctionsTest.java
GEOS-6216: POST bbox query with complex attribute specified results in the wrong axis order