Adds links to individual items from index view

This should be useful to power users wanting to share items with friends, and
with council members wanting to send a link to staff to ask them to comment.

Pivotal: [Fixes #78433532]
Merge pull request #18 from codeforamerica/feature/add-link-to-event-items-from-index

Adds links to individual items from index view
add .env to .gitignore
use unicorn via procfile
Merge pull request #19 from codeforamerica/use-unicorn

Use unicorn
Merge branch 'master' into refactoring
fixing variable name
Merge branch 'refactoring'
Merge branch 'master' of https://github.com/codeforamerica/MuniciPal
futzing around with all districts / mayor view