Log Message:
zbar: Update to 0.23.1

Changes:
0.23.1
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  * Add i18n translation support and add a pt_BR translation
  * Change default to autodetect python and gtk versions
  * Improve tests and builds on travisCI
  * Some documentation updates
  * Add support for binary data extraction
  * Add support for raw decoding without charset conversions
  * Add one shot scanning mode
  * Improved OSX and iphone support
  * Fix help messages
  * Fix some makefile issues
  * Fix error detection in video4linux read
  * Fix pkgconfig for zbar-qt5
  * Fix a double-free condition