[$100] Updated UI: Group attributes

[atelomycterus]

@jmgasper Layout of Group page

• The group attributes are displayed in 2 columns, displayed after discussions
• The list of attributes is changed
• Members section is removed
  Screen: https://marvelapp.com/prototype/c06bg41/screen/77911801.
  

The current design:

[jmgasper]

Challenge https://www.topcoder.com/challenges/99a2fe1f-4e89-44eb-a5e5-89c8f1065121 has been created for this ticket.

This is an automated message for ghostar via Topcoder X

[jmgasper]

Challenge https://www.topcoder.com/challenges/99a2fe1f-4e89-44eb-a5e5-89c8f1065121 has been assigned to obog.

This is an automated message for ghostar via Topcoder X

[atelomycterus]

@jmgasper I've implemented it. The changes affected 4 repos (challenge forum processor, topcoder plugin, groups plugin +theme). I'll test it and push it tomorrow.

The header:

The group attributes:

[jmgasper]

Great, thanks!

[atelomycterus]

@jmgasper We can use markdown in template.json (challenge forum processor). Group description will be rendered to html. Previously there was plain text.

Please apply PRs:
topcoder-platform/forums-theme#40
topcoder-platform/challenge-forum-processor#57
topcoder-platform/forums-plugins#89
topcoder-platform/forums-groups-plugin#79

Thanks!

Testing

Please clear browser cache before testing.
Updated Group description + Group attributes (layout, date formatting, etc).
Please create a new challenge to verify Group Description. Group description is generated by challenge forum processor.