v1.5.1

I'm starting to make releases for each major and minor increases in version number. For patches I will only use lightweight tags. This is the first release on this new schema.

New features

• Can create projects and groups from top menu.
• Send weekly email notifications in groups with updated bibliography recomendations.
• Better styling of bibliography items in group section.
• Finer scale for time picking in group tasks.

Fixes

• Render html in messages at the group-admin pages.
• Fix #213. No automatic preview in Outreach while editing an existing article.xs
• Some typos, template and bad links fixed