QHexDocument m_baseaddress not used

[ragundo]

Defined, initialized in constructor, get/set method, but not used at all in the code
If you need to show a memory range not starting at zero, it doesn't work.
Strange because of #2

[Dax89]

Widget has been reimplemented a lot of times since that bug report, I will take care of m_baseaddress during painting.

Thanks for reporting!