Have D3 js file hooked up.
Implemented method to get no of days until item expires.
Reworked model methods to properly process data.
Working scatter plot pulling information from DB.
Have color support to scatterplot.  Size increased and scales for time and quantity set.
Fixed bug in calc_percent_of_total_remaining method.  Now returning correct percentage.
Added id and classes to scatterplot points.
Implemented basic drag and zoom on svg.
Have ajax div displaying with item information when scatter plot chart is clicked.
Attempted to add item transactions to item viewer.
Merge branch 'feature-basic-d3-scatterplot' into develop
Working scatterplot, startings of more advanced functions