Merge branch 'master' into tristan_crime_viz
deleted the used photos
adding small pic, dunnow why it missing to begin with
adding missing medium desk
adding sf background photo
clean up crime intro
fix broken link
Make sure migrations read from the columns directly
Change route to get
Fix missing permitted params for linkedin integration
Temporarily add validations for username (for linkedin) and move certain columns to update
Add browsable user model
Add relationships between browsable users and companies
Annotate browsable users
Add company specific parts to the profile page
Fix up user project view
User methods for completed challenges and lessons
Split projects into challenges and lessons
Project lessons no longer have links
Show a blank right sidebar for the company recruiting page