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gpgme++

• added more ctors for GpgMe::Result to avoid changes in dependent code
• GpgME::Error: Changes that makes the code portable to msvc 2k3; (Marc's suggestion) GpgME::Error::encodedError() makes the overall code a bit more readable than using operator int(). Safe operator bool() is left as before.
• GpgME::Error-dependent code updated for the new encodedError() method

svn path=/branches/work/kdab-post-4.0/kdepimlibs/; revision=750531