Add translator comments for strftime strings: Refs bgno#716533
Add translator comments for strftime strings: Refs bgno#716533

The strftime strings for local-specific date/time formats are
cryptic, so hopefully these comments will help translators make the
right choice.

abrauchli/shotwell,ritchiewilson/shotwell,abrauchli/shotwell,ritchiewilson/shotwell,jimbonator/shotwell,ritchiewilson/shotwell,jimbonator/shotwell,jimbonator/shotwell,abrauchli/shotwell