Changelog for Zip/Unzip classes

• 2012-01-08 Implemented Zip::IgnoreRoot flag; added addFile() and addFiles() convenience methods; added Zip::CheckForDuplicates and Zip::SkipBadFiles flags; added (very) minor improvements.
• 2011-06-25 Bug entry #2 - checking of "version needed to extract" flag (thanks to Dominik for reporting).
• 2011-06-25 Fix compile errors on GCC/Linux.
• 2011-03-27 Major changes:

  • added support for namespace
  • added support for shared library builds
  • added basic support for time zones
  • no longer take ownership of QIODevices (MAJOR API CHANGE!)
  • unzip will update last modified time on win32 and posix compliant OS
  • code clean up

• 2010-07-08 Bug fix: extractFile() was permanently updating the compressed file size in the zip entry in case of an encrypted entry. Thanks to Serge Kolokolkin for finding and reporting the exact bug.
• 2008-09-07 Bug fix: rare failure to locate EOCD when archive had a comment.
• 2007-02-01 New IgnorePaths compression option and two more addDirectoryContents() convenience methods to use this option.
• 2007-01-28 Major changes:

  bug fix: there was a big problem with directory names

  API changes: the Zip::addDirectory() method is now easier to use; the password can now be set using a setPassword() method and a new flag allows to preserve absolute paths

  added an encrypted flag to the Unzip::ZipEntry struct

  removed QObject inheritance. Internationalization is now achieved through QCoreApplication::translate()

• 2006-11-24 Bug fix: under certain circumstances, an additional directory was being created in the root directory of the zip file.
• 2006-10-23 Minor API changes; QIODevice support added; better binary compatibility; "long long" issue with older compilers solved.
• 2006-06-09 Minor API changes.
• 2005-10-03 First public release.