Inconsistent WW/WC and WW/WL

[cancan101]

In one place it is called WW/WC in the other WW/WL:

• cornerstoneDemo/index.html

  Line 390 in c112d07

  $(bottomRight[1]).text("WW/WL:" + Math.round(e.detail.viewport.voi.windowWidth) + "/" + Math.round(e.detail.viewport.voi.windowCenter));

• cornerstoneDemo/index.html

  Line 209 in c112d07

  <div>WW/WC:</div>