Add slide widget to home page and move up calls to action

Work in progress.  Needs rework of proportions of slide
widget.

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Update Slideshare iframe to new presentation

Version from Linux Foundation Collaboration Summit

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Remove extra horizontal lines from layout

Because there is already whitespace separating
"homeCols" divs, we do not need the hairline border
here.

Signed-off-by: Don Marti <dmarti@cloudius-systems.com>
Merge pull request #37 from dmarti/lf-slides

Lf slides