Strip empty rows from HTML output tables. Max width 10 columns.
|hide-empty-rows| must be present in corresponding rst file.
This is a post-build clean-up step for tables with conditional
content that renders as empty rows.
Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Ia65cc0a945d0ed8955c2a5d9bb68649d2280d27d