described the neo4j-shell environment, so users know what they are starting
described the neo4j-shell environment, so users know what they are starting

git-svn-id: 29dedc3be3869aa651194f33729b14df5bac624c@6019 0b971d98-bb2f-0410-8247-b05b2b5feb2a

neo4j-attic/examples,dmontag/neo4j-enterprise,thobe/neo4j-advanced,dmontag/neo4j-enterprise