Add utilities to read/write lists of strings to utf8 files.
Add utilities to read/write lists of strings to utf8 files.

Reader by default removes comments starting with '#', strips lines,
and removes blank lines.

dougfelt/nototools,googlei18n/nototools,googlefonts/nototools,dougfelt/nototools,moyogo/nototools,googlei18n/nototools,moyogo/nototools,googlefonts/nototools,googlefonts/nototools,googlefonts/nototools,dougfelt/nototools,googlei18n/nototools,moyogo/nototools,googlefonts/nototools