Julia frontend

This layout divides the loan profile page into tabs, but I think the collapse-show functionality needs to be done in JavaScript.  Once that is added I can work more on the discussion and repayment tabs.  The tab style itself is a placeholder, as I'd like to find something nicer-looking.

Similar to Airbnb, the lend form modal box would appear to the side and fixed at the top in tablets, and fixed to the bottom in mobile devices.  

This layout also assumes we'll expand the mobile version of the form when the "Lend" button is clicked, probably to fill the screen, reveal the hidden amount/interest form fields and change the button text to "Next." I can work on formatting that part of it once you have the chance to add the extra expansion step.

We should probably round the "amount still needed" display up to the nearest dollar.  The downside is that it will sometimes result in decimal amounts being outbid by whole dollar amounts, but I think it's worth it to be able to present a cleaner interface to prospective lenders.  In the longer term we could fix that by only allowing whole-dollar amount bids and rounding loan request amounts to the nearest dollar. 
  
The lender section is a placeholder for now; I'll work on it more this week.