Revert "Added direct access to request cookies for jinja2 templates"

This reverts commit 96572e776b5e68b90d9a902e8f7116387a61165c.
A few bits and pieces
make sidebar dongle into hamburger
Moved sidebar source to appropriate place (before init)
Merge branch 'master' into search
Automatically prettyprinted/formatted file using:

sass-convert -i --indent 4 header.scss
Fixed issue with inappropriate whitespace under columns in panel.
Updated tim to use a per-branch database
Merge branch 'master' into search