Defect/stock level graph

stock level graph only shows non zero records now!

in home.js:

if (product.stockLevel <= 0 && filtered.length === 0) {
                        stockOutWarning.push(uuid);
                      } else if (product.stockLevel > 0){

                        values.push({
                          label: utility.ellipsize(product.name, 7),
                          stockAboveReorder: inventoryRulesFactory.stockAboveReorder(
                            product.stockLevel, product.bufferStock
                          ),
                          stockBelowReorder: inventoryRulesFactory.stockBelowReorder(
                            product.stockLevel, product.bufferStock
                          )
                        });
                    }

did the job!