redone the sidebar

I removed the image, project count, courses count because I feel it
doesn't add any value to the UI for the user. No longer using .card
instead using something simpler. I warn you not to look at the css,
it's pretty ugly.
more rework on the side panel

I got rid of the yellow color because I felt it was too tacky
tons of UI stuff

so much has been reworked and I'm so tired I'm not taking the time
to write it down. I'm tired, and I'm going home!
i'm not explaining
basic ui rework finished, now just needs polishing, closes #41

I also added a placeholder for current employer on the listings.
Next thing to do is work on the employer data model so that I can
easily filter by employer as well. If that's finished by the
presentation I'll be very happy.
Merge pull request #43 from rcsole/ui-rework

Ui rework