destroy screenshot when user clicks cancel
* refactor deleting old images when updating proof
Merge pull request #52 from akshatpradhan/delete-unused-images

destroy screenshot when user clicks cancel
user wants to see PDF version of completed requirements
Merge pull request #55 from akshatpradhan/generate-pdf-assessment

user wants to see PDF version of completed requirements
user wants to attach/update note for a proof
Merge pull request #56 from akshatpradhan/add_and_update_note

user wants to attach/update note for a proof
user expects to see updated_at in words

users will now see updated_at in words on /requirements and proofs#edit
Merge pull request #57 from akshatpradhan/show_updated_at_for_proof

user expects to see updated_at in words
add note, image, link to pdf
Merge pull request #59 from akshatpradhan/improve-pdf

user wants to see note and image when downloading PDF
user wants to see timestamp details on PDF document
* last update timestamp for proof
* user name and email in title
* document creation timestamp
* smaller column widths
Merge pull request #60 from akshatpradhan/improve-pdf2

user wants to see timestamp details on PDF checklist
update ruby 1.9.3 to 2.1.1
user wants to see better styles

* add flat-ui-sass
Merge pull request #61 from akshatpradhan/flatui

user wants to see better styles
upgrade to rails 3.2.17 to address security vulnerabilities

addresses security issues
* CVE-2014-0081
* CVE-2014-0082
Merge pull request #64 from akshatpradhan/rails3_2_17

upgrade to rails 3.2.17 to address security vulnerabilities
fix pdf specs by using google image
secure secret token
ensure user email is unique and correctly formatted
* validate email on update only
* render form errors for user