Add links to event, person in task details page
Add links to event, person in task details page

Fixes #390.

vahtras/amy,wking/swc-amy,vahtras/amy,swcarpentry/amy,pbanaszkiewicz/amy,pbanaszkiewicz/amy,wking/swc-amy,vahtras/amy,swcarpentry/amy,swcarpentry/amy,wking/swc-amy,wking/swc-amy,pbanaszkiewicz/amy