Merge pull request #349 from plotly/update-facecolor-mock

update tetrahedra mock ('facecolors' -> 'facecolor')

Author: etpinard

test/image/baselines/gl3d_tet.png

@@ -8,14 +8,23 @@
       "i":[0, 0, 0, 1],
       "j":[1, 2, 3, 2],
       "k":[2, 3, 1, 3],
-      "facecolors": [
+      "facecolor": [
         "rgb(0, 0, 0)",
         "rgb(255, 0, 0)",
         "rgb(0, 255, 0)",
         "rgb(0, 0, 255)"
       ]
     }],
   "layout": {
-    "title": "Tetrahedra"
+    "title": "Tetrahedra",
+    "scene": {
+        "camera": {
+            "eye": {
+                "x": 1.5,
+                "y": -1.5,
+                "z": 0.5
+            }
+        }
+    }
   }
 }