changed the navbar to have admin link on the page
* allowed admin reader-panel to show yes or no by writing a method called show_yes_no
* sorted the readers in observation_reads table
* admin only shows when you're reader 2
changed method back to show numerical numbers
fixed the nav bar
show admin link only if you're reader 2
added rails helper
Merge pull request #80 from aspire-public-schools/styling-admin

Styling admin