Better handling of text strings, particularly handling date/time.  This changes several of the labels to simply "%s", which is is a placeholder for the translated date/time.
Bring breadcrumb-trail.pot up to date.
Add Finnish translation files. Props @samikeijonen

See: https://github.com/justintadlock/breadcrumb-trail/pull/5
Readme updates.
Add the "Text Domain" and "Domain Path" plugin headers.
Clean up plugin header.
Version bump to 0.6.1.