add the phantomjs testing requirement to README.md

the addition to the README.md is the only notable change here

pre-processing config.yml is inconsequential if config.yml contains no erb - i added this to allow peer4commit and tip4commit to co-exist functionally in the same repo - without this feature the config.yml would either need to be commited to the repo or manually restored upon each branch change - so i figured this was the least intrusive option

im not sure why the schema was modified - this was not my doing - there must had been some manual additions to the migration files after the initial migrations (notably the email index in the users table)