Add global key bindings for finding function and variable definitions.
Tweak find file in project.

      - Bump file limit.  This may be excessive!

      - Add Soy Templates to the list of file types to find.

      - Ignore the ./build/ directory in projects.

      - Show the full file paths when identically named files are found.
Tweak ibuffer formats.
Use jinja2-mode for Soy Templates.
Tweak JSON mode list regex.