Don't show errors
Add the required 'threadsafe' field to app.yaml
Make the favicon a static file
Use the absolute path and the 'file://' wrapper to read files
Use file_get_contents() to read the XML file(s)
Revert "Use the absolute path and the 'file://' wrapper to read files"

This reverts commit 536926d05f93972a585709cce3986d1831f9692e.
Add GitHub Ribbon
Update Heavyer Ink URLs