trying to add dummy app in order to test neo4j database interaction.
promoting the gem to be a rails engine in order to be able to include database migrations that can be installed using a rake task.
trying to get the setup_stages rake task to be recognized -- this is neccessary to install neo4j for development and test stages parallely.
do not laod the environment for the setup_stages rake task.

This is the key to solve the problem that the neo4j database deamon is not running when running this rake task during the installation process.
rake tasks neo4j:install,setup,start,stop.
fixing engine issues by requiring 'engine.rb'.
changing neo4j configuration in order to allow development and test instances of the deamon to run in parallel.
trying to modify travis to start neo4j.