Adjust bottom padding of prefpanes
Don't truncate text in Add Item by Identifier box at less than the full box width
Quit rather than restart when changing data directory
Remove obsolete code
Revert "Don't truncate text in Add Item by Identifier box at less than the full box width"

This reverts commit 5f2f120a98858d4b4b7b61cf9637ee35bf6e86eb.

This seems to be a bug in Nightly, not Zotero.
Remove per-library sync error indicators, at least for now

The hidden column caused collection names to be cut off unnecessarily,
and the extra icons were overly distracting. For now, just show the
first error that comes in in the main sync error panel, along with the
library name.
Fix bottom padding of Sync->Reset pane
Merge locales from Transifex
Update submodules
Merge branch '4.0'