LDEV-3754: Tweaking size of popup window so that when teacher does Edit Activity from the monitor screen, the navbar doesn't collapse. Bootstrap was recognising the smaller size as a table and collapsing fields, etc in Firefox on OS/X.
LDEV-3762: LDEV-3763: Using more bootstrap tabs for formatting and have added the divider for comments to learning (has been removed from the comments side).
LDEV-3677: Moving divider line to the calling code (ie tool) so that the tool can control when it needs a separator. Using more bootstrap tags for formatting.