Publish project updates

[brylie]

Allow project participants to publish project updates. These could be in the form of announcements or something similar. It might be desirable to link to an external RSS feed, e.g. when the project publishes updates on its own website.

Specification

The ProjectUpdate model class should be created in the projects/models.py

Project updates should have the following structure:

• title - character field
• body - text field (later, with rich text editor)
• update_type - enum of allowed values
• created_date - date the update was published
• project - the foreign key to related project
• author - the user who published the update (foreign key)

Project updates should be displayed in a section on the related Project page.

Example mock-up