ch 4: added morgan for logging
ch 5: read posts from api
ch 5: serve angular app via node
ch 5: save posts to api
ch 5: fixed post ordering in node and angular
ch 5: breakup server.js and switch to ejs from sendFile
ch 5: break out frontend js into its own file
ch 5: break up angular code into controller + service
ch 6: building js with gulp
ch 6: watch js for rebuild in gulp
ch 6: js sourcemaps with gulp
ch 6: module gulp
ch 6: gulp stylus css
ch 6: gulp nodemon
ch 6: removed global app variable