added a post install script that will run bower

@gaitonde @indytechcook  please take a look at this pull request, it solves the bowe rinstall on heroku issue.    I have a Build pack on but dont think we need it:wq

added bower helper
forgot to add helper
updated readme
adding bower
added path to bower module
cahnged bower path to realaitve
update to package.json adding bower to deps
renamed bower_help.sh to postinstall.sh