Make a backup of old layout
Switched style to Canvas Admin

This is a very basic commit adding all of the necessary files to make
it so that every page is themed using Canvas Admin. It is incomplete
in the sense that all intended functionality hasn't been put in place
yet.

In particular, this commit does not address appropriate linking and it
has a placeholder "blank page" header on every page.
Fix rendering issues with _LoginPartial section of page
Reenable modernizr and remove temporary commented code
Reenable all top links and update icons
Put text into search div
Fix search box display on project details page
Change search box to project name box and fix it for small screens
Set up ContentHeader and ProjectName in layout
Make Projects and Tickets use ContentHeader (and ProjectName)

Not every page that should have ProjectName has it, because it will
require more extensive code changes to make it work. CreateTicket, for
instance, uses a ViewModel and doesn't have access to the associated
project yet.
Change ProjectName to h3

It appears better a bit smaller.
Change "Index" ContentHeader to "Projects"/"Tickets"

The two pages were too similar visually and they could be confused initially.
Update TicketModel to get more info on project and add ProjectName to create pages
Flatten TicketViewModel

This pretty much undoes some of the previous commit and reimplements
with a different approach. Passing an entire ProjectViewModel is just
excessive when all that is needed is the Id and Name.
Redirect back to project when editing a ticket
Replace sidebar with commented out placeholder
Merge branch 'feature/use-new-theme' into develop