Fix slickgrid initialization to be called when layer element has been added to the DOM.
Fix slickgrid initialization to be called when layer element has been added to the DOM.

Slickgrid computes the size of the table viewport from the dom element size.

concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap