Use yourls_number_format_i18n() to properly format numbers according to locale

git-svn-id: http://yourls.googlecode.com/svn@878 12232710-3e20-11de-b438-597f59cd7555
PHPdoc-ish-ification of older functions. Fixes issue 1244.

git-svn-id: http://yourls.googlecode.com/svn@879 12232710-3e20-11de-b438-597f59cd7555
More unique JS function names. Fixes issue 1276. Stupid Chrome.

git-svn-id: http://yourls.googlecode.com/svn@880 12232710-3e20-11de-b438-597f59cd7555