Refs #2567: move dotted line from newsletter body tables to category tables
Refs #2567: remove dotted lines from components table; add dotted lines as td
Refs #2567: add space beyond dotted line, for Highlights items
Refs #2567: refactor layout for Highlights items with thumbnail, for Outlook
Merge pull request #178 from sandriu/2567_newsletter_all

Refs #2567: fix newsletter dotted lines for categories