-Updated to version 0.21
* Improvements for translators:
When msgfmt writes a MO file, it now does so in such a way that processes
that are currently using an older copy of the MO file will not crash.

- Updated to version 0.21
- Java:
o xgettext now recognizes format strings in the Formatter syntax. They
are marked as 'java-printf-format' in POT and PO files.
o xgettext now recognizes text blocks as string literals.
- Improvements for translators:
o When msgfmt writes a MO file, it now does so in such a way that processes
that are currently using an older copy of the MO file will not crash.
- Update to 0.21:
* Programming languages support:
- Shell:
o xgettext now recognizes and ignores 'env' invocations and environment
variable assignments in front of commands.
- Java:
o xgettext now recognizes format strings in the Formatter syntax. They
are marked as 'java-printf-format' in POT and PO files.
o xgettext now recognizes text blocks as string literals.
- JavaScript:
xgettext parses JSX expressions more reliably.
- Ruby:
o xgettext now supports Ruby.
o 'msgfmt -c' now verifies the syntax of translations of Ruby format
strings.
* Improvements for translators:
- When msgfmt writes a MO file, it now does so in such a way that processes
that are currently using an older copy of the MO file will not crash.
* Libtextstyle:
- Added support for emitting hyperlinks.
- New API for doing formatted output.
- The example programs support the NO_COLOR environment variable.
- Update to 0.21:
* Programming languages support:
- Shell:
o xgettext now recognizes and ignores 'env' invocations and environment
variable assignments in front of commands.
- Java:
o xgettext now recognizes format strings in the Formatter syntax. They
are marked as 'java-printf-format' in POT and PO files.
o xgettext now recognizes text blocks as string literals.
- JavaScript:
xgettext parses JSX expressions more reliably.
- Ruby:
o xgettext now supports Ruby.
o 'msgfmt -c' now verifies the syntax of translations of Ruby format
strings.
* Improvements for translators:
- When msgfmt writes a MO file, it now does so in such a way that processes
that are currently using an older copy of the MO file will not crash.
* Libtextstyle:
- Added support for emitting hyperlinks.
- New API for doing formatted output.
- The example programs support the NO_COLOR environment variable.