- logic change: a transaction will not be performed when one of its item can not be acted on. Before, the only the valid items were processed. A LOT of simplifications have come up. I am slowly moving toward the resolution of bug 168411, by simplifying the interface that will be needed to move the transactions to the bookmarks service.
- fix bug 221550: the selection is not retained when performing an invalid transaction
- no need to restore the selection after an action that doesn't touch the datasource.
- during a batch, the bookmarks toolbar observer wasn't notified.
- much faster preUpdateTreeSelection
- various code cleanup
- DND bookmarks in tree is now significantly faster.
- still need to figure out what is the best BATCH_LIMIT value.
git-svn-id: svn://10.0.0.236/trunk@147752 18797224-902f-48f8-a5cc-f745e15eee43
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