Resume of the build instructions found in the Neo4j project page on GitHub.
### Compiling
$ export MAVEN_OPTS="-Xmx512m"
$ cd neo4j/community/
$ mvn [clean] install -Dlicense.skip=true -DskipTests
$ cd server
$ mvn clean compile exec:java
2015-08-28 00:35:15.719+0200 INFO Successfully started database […]
2015-08-28 00:35:16.861+0200 INFO Remote interface ready and available at http://0.0.0.0:7474/
$ cd graphviz
$ ./graphviz --help
$ git clone [email protected]:neo4j/neo4j.git
$ brew install|upgrade graphviz libtool maven node.js
$ npm install grunt-cli