Update history and add design doc.
Fix update issue - listing would be deleted because it wasn't loaded.
Add reindex button to unlisted categories.
Add new / changed item list
Fix _.sort and _.sorter not working.
Show get list progress. Sort category list in update page.
Add mouse over highlight on tables.
Fix list all does not update changed/added count.
Fix TierName translation.
Fix data re-processing. Improve reindex speed.