Merge pull request #23 from alexanderdavidpan/view

Edited user's profile page view and implemented delete survey function.
Merge pull request #24 from alexanderdavidpan/view

Edited surveys page to display number of users who've taken a particular survey
Merge pull request #25 from alexanderdavidpan/view

Edited all surveys page to include view survey results links.
Merge pull request #26 from alexanderdavidpan/Add_questions

Edited create_survey page
Remove buttons on home page when not logged in
Merge pull request #27 from alexanderdavidpan/Take_Survey

Edited take survey page so users can only select one radio button per question.
Merge pull request #28 from alexanderdavidpan/mario

Remove buttons on home page when not logged in
Added links to signup and login prompt when users are not logged in