Fix #445 -- UnicodeDecodeError in SQLSelectForm.
Add doctype to HTML templates.
Make panels behave more like Django middleware.
Disable the toolbar entirely on AJAX requests.
fixud
Implement redirects interception as a panel.

Fix #122.
Move panel-specific views in panel modules.
Remove stacktrace scrubbing superseded by HIDDEN_STACKTRACE_MODULES.
Move some panel-specific javascript in specific files.