Add config to help integrator's work

The config file are selected from the vm hostname, a nfs shared folder on the vm that can be mounted on the host give access to the liferay folder (and help rapidly change css and other static file), create the database from a backup if an sql file is provided
Merge branch 'master' of https://github.com/jbonjean/vagrant-liferay
Merge pull request #1 from cloutierjo/master

Add config to help integrator's work