adapt jasmine tests

Author: etpinard

test/jasmine/tests/bars_test.js

@@ -1,4 +1,4 @@
-var Plotly = require('@src/plotly');
+var Bars = require('@src/traces/bars');
 
 describe('Test bars', function () {
     'use strict';
@@ -9,7 +9,7 @@ describe('Test bars', function () {
 
         var defaultColor = '#444';
 
-        var supplyDefaults = Plotly.Bars.supplyDefaults;
+        var supplyDefaults = Bars.supplyDefaults;
 
         beforeEach(function() {
             traceOut = {};

test/jasmine/tests/histogram_test.js

@@ -1,4 +1,4 @@
-var Plotly = require('@src/plotly');
+var supplyDefaults = require('@src/traces/histogram/defaults');
 
 describe('Test histogram', function () {
     'use strict';
@@ -7,8 +7,6 @@ describe('Test histogram', function () {
         var traceIn,
             traceOut;
 
-        var supplyDefaults = Plotly.Histogram.supplyDefaults;
-
         beforeEach(function() {
             traceOut = {};
         });