[mythtv] [patch] mythvideo japanese translation update and unicodefix

[Hirobumi Shimada]

Thanks for fix my broken patch for function JumpSelection.
but I think "-1" is not need.
Because skipping bottom of video in m_list, if inData is -1.

I want to do like this.

  inData = m_list.count() + inData ;

more safe way is

  inData = m_list.count() + (inData % m_list.count());


How about this?

Thanks, Hiro