Histogram issue on window resize

[marlomgirardi]

Regarding this issue #35 it has solved the problem but I had done the wrong way.

I will let here the notes to do it when I have time.

• Undo MR fix DensityChart Component on screen resize #35 (using target.name has some issues when we have uglified code)
• Check if end event is used (brush end), otherwise, change to `"brush" and everything will work as expected.