add links to the two IB articles
added styling and links to emails
moved gumroad script to application.html.erb
change to sign_up email
Merge remote-tracking branch 'upstream/master'
add delete function to articles
added 2 links to articles#index
added link_to new_problem_path
Fixed bullet point and changed <title>
added wording and formatting to advanced search
changed about page
add column to admin page
added industry category model
tweak industry
further tweaking companies
final tweak for industries
Merge pull request #15 from Vars5/master

Changes for 8th July