Escape person name in contacts json

jQuery autoSuggest uses .html to insert it into the DOM
so turns out whether an id is serialized to a json integer or string
depends on the DB backend
fix hovercard aspect selectio z-index by moving it out of the stream element

- create handlebars template for hovercards
- fix notifications-dropdown (workaround) to remain open when aspect
  selector is clicked
Personnalize home page, registration page and terms page
Add my aspects link in the header