PR feedback: generalized file name

Author: monfera

src/lib/float32_truncate.js renamed to src/lib/typed_array_truncate.js

@@ -20,7 +20,7 @@ var Axes = require('../../plots/cartesian/axes');
 var autoType = require('../../plots/cartesian/axis_autotype');
 var ErrorBars = require('../../components/errorbars');
 var str2RGBArray = require('../../lib/str2rgbarray');
-var truncate = require('../../lib/float32_truncate');
+var truncate = require('../../lib/typed_array_truncate');
 var formatColor = require('../../lib/gl_format_color');
 var subTypes = require('../scatter/subtypes');
 var makeBubbleSizeFn = require('../scatter/make_bubble_size_func');