Added a configuration step and beacon hello world example to readme
Create index.html

A revision of the phonegap demo web app that adds divs for displaying estimote beacon data.
Create index.js

Added code to demo estimote phonegap plugin by displaying properties for first beacon in a list of nearby beacons.
Merge branch 'master' of https://github.com/charlotteip/phonegap-estimotebeacons into charlotteip
Formatting, checking for empty beacons array, changes in the Readme file.