* src/DataViews/_MediaView.py (row_change): Collect garbage on the
row change.
* src/Selectors/_BaseSelector.py: Use DisplaModel models;
(_local_init): Add selector-specific hook.
(_local_init): Set up preview;
(_row_change): Show preview; collect garbage.
svn: r6690
* src/Editors/_EditLdsOrd.py: Adapt to new selector.
* src/DisplayTabs/_SourceEmbedList.py: Adapt to new selector.
* src/DisplayTabs/_EventEmbedList.py: Adapt to new selector.
* src/DisplayTabs/_GalleryTab.py: Adapt to new selector.
* src/Selectors/_BaseSelector.py: Use DisplaModel models.
* src/Selectors/_SelectRepository.py: Use DisplaModel models.
* src/Selectors/_SelectSource.py: Use DisplaModel models.
* src/Selectors/_SelectEvent.py: Use DisplaModel models.
* src/Selectors/_SelectFamily.py: Use DisplaModel models.
* src/Selectors/_SelectPlace.py: Use DisplaModel models.
* src/Selectors/_SelectObject.py: Use DisplaModel models.
svn: r6687