Add tag to project page to show part of larger consortium/campaign

[lauraroverts]

We're planning to remove Sponsor Partner (#84). Sponsor partner was created in the past to be able to create an Akvo Page for a consortium like the WASH Alliance or campaign like Walking for Water. This can now be done by using keywords.

Besides this, Akvo is putting all our own projects online. The project is written from an Akvo perspective.For partners it is now not clear that a project is an 'Akvo Chum' project. The project also shows up in their list because we added their organisation as a project partner, while it is Akvo's project, not theirs.

By removing the sponsor partner, it won't be visible anymore that a certain project is part of a consortium/campaign, because the logo of the sponsor partner will disappear.

In project pages and in project overview it needs to be obvious that a project is part of a campaign (eg Walking for Water) or consortium (eg Connect4Change).

Multiple tags needed, cause project can be part of Football for Water ánd Walking for Water.

Idea: Tag like 'We love open source' at akvo.org if it is an Akvo Chum project.

[lauraroverts]

Has been released Akvo RSR version 3.4 Honiara