Added a Procfile to see if that helps with js compilation issue...maybe case sensitivity? not sure.
Removed line from appplication.css to see if that fixes heroku build.
Removed bootsrap plugin less support. Seems to not work with heroku. Some type cast issue: https://github.com/groovydev/twitter-bootstrap-grails-plugin/blob/master/README.md
Removing Procfile, I think the resource I got the procfile from was out of date.
Added alias from / to ApplicationController.index