Remove the profile command from docs for now.
Merge branch 'neo4j/1.9-maint' into master

Conflicts:
	community/cypher/src/main/scala/org/neo4j/cypher/internal/executionplan/builders/ColumnFilterBuilder.scala
	community/cypher/src/main/scala/org/neo4j/cypher/internal/executionplan/builders/EmptyResultBuilder.scala
	community/cypher/src/main/scala/org/neo4j/cypher/internal/executionplan/builders/ExtractBuilder.scala
	community/cypher/src/test/scala/org/neo4j/cypher/ExecutionEngineTest.scala
	community/server/src/docs/dev/rest-api/cypher.asciidoc
	community/shell/src/test/java/org/neo4j/shell/ShellDocTest.java