updated comment
can just use one data call and pass in numerical data to x scale function
using svg now instead of appending it
dynamic data updating on graphs for d3
moved graph transition code, removed double quotes for singles
refactored update() into separate methods in same file
require a non-blank name for beer creation
Merge pull request #1 from stuartnelson3/dynamic-d3

add dynamic d3 content to beer-czar