string change questions

[Jacob Perkins <jap1 users sourceforge net>]

Would any of the following be considered string changes and/or break
existing translations?
1. Add a new file to POTFILES.in that contains already translated
strings
2. Remove files from POTFILES.in that don't have any strings to
translate
3. Move a translated string from one file to another, both being in
POTFILES.in
4. Remove a file from POTFILES.in that contained an unecessary string
translation (i.e. date format).

Thanks
-- 
Jacob Perkins <jap1@users.sourceforge.net>
seahorse