- Switched navigation bars to use global actions/includes array in ...

inc.vars.es_src.php instead of manually including files.
- Fixed a display bug with the "Last year" navigation bar item that caused
  it to erroneiously highlight "Last year" when you were actually viewing
  a single month from last year.

- Switched to different country codes for different classes of local traffic, ...

and to fix the problem of download numbers being assigned to the wrong class.

- Added support for listing papers downloaded by country.

- Switched to machine-independent environment configuration.

- Stats page now looks up the eprint title on the fly from the repository if ...

it isn't in the stats database already (only needed if the eprint hasn't
  been downloaded yet).

- Re-added statistics files in a better location.