added the generated target subdir to .gitignore
for a simple demo, change the version to something -SNAPSHOT; TODO: make a script that will handle this and accordingly set --repository= snapshot OR release
added snapshot and release maven repos; adding this to BuildConfig.groovy has the advantage that we do not have to create on travis-ci.org a separate ~/.grails/settings.groovy file
adjusted build command, for now deploying set hardcoded to the snapshot repo