First APOC release

In this first release APOC already comes loaded with lots of useful procedures for Neo4j 3.0-RC1

Please follow the instructions in the readme for usage tips. You can also use CALL apoc.help('name') for a short description in the browser

Grab the binary JAR, drop it in the $NEO4J_HOME/plugins folder and restart the server. Then CALL dbms.procedures should list them all.