JBIDE-18395 - Improve layout / Show CAT

Changed the content of /index.html:
- showing 3 hightlighted features on 1st row under the 'hero-section'
- showing the CAT on second row

"Latest News" and "Upcoming Events" sections are pushed on the right side with a grey background color.
Rename Forge Tool to Forge Tools and have events sorted by time in proper order
update eclipsecon europe info