0.23.1

0.23.1:

• 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