Refs #2567: refactor width for left and right columns of newsletter body
Refs #2567: refactor HTML and CSS for newsletter categories name
Refs #2567: refactor HTML and CSS for Highlights items
Refs #2567: refactor width for left and right columns with cell padding
Refs #2567: numeric value for table width, instead of percents
Refs #2567: refactor HTML and CSS for all category items; insert blue line
Refs #2567: add images for link arrows
Refs #2567: refactor the layout for item link arrows; move the dotted border-line
Refs #2567: complete syntax for dotted border, although it is not fully working in Outlook
Merge pull request #172 from sandriu/2567_newsletter_all

Refs #2567 partial improvement for newsletter body