* differentiate set_roi and real_roi in CtHwBinRoi
* wait for m_ready_flag in CtSaving::resetLastFrameNb,
  call it during CtControl::prepareAcq if autosave
* find next_frame in CtSaving::_save_finished instead of m_frame_datas.begin()
* removed unregister Frame/MaxImageSizeCallback in destructors, 
  it is automatically done when deleting the callbacks
* check !roi.isEmpty() when recalculating CtSw/HwBinRoi setMaxSize/Bin
* changed AcqState::State to bit mask, allow to wait for a combination 
  of flags, renamed Running to Acquiring, added Saving
* improved testfreloncontrol[.py] with FrelonAcq
* restore ostream original parameters (width, fill) after Debug heading
* added virtual XXCallbackGen setXXCallbackActive, called in base destruct.



git-svn-id: https://scm.blissgarden.org/svn/lima/trunk@196 45c4679d-1946-429d-baad-37912b19538b