cw-329 Add a tab in admin with preview function
add view for press releases
add new date format - used in press releases
Display message in an iframe
refactored press release content type
CW-597- modify date format
newsletter - remove top blue line for the first categories on column
remove double dotted line for hightlights items
CW-605 - change language Protuguese, Internationl
Merge pull request #299 from rciofringeanu/cw-329-short-messages

Cw 329 short messages
Merge pull request #301 from claudiaifrim/HOTFIX_newsletter_design

Hotfix newsletter design, date format, list of languages
Merge pull request #300 from claudiaifrim/press_release_refactor

Press release refactored content type + Press release block + Press releases listing (all)