Release 5.16.0

### Bugfixes

Fix glitches when dragging content caused by the drop indicator receiving mouse events.

Make Control-drag work on Firefox.

Make clicking or selection-dragging at the end of a wrapped line select the right position.

[show-hint addon](http://codemirror.net/doc/manual.html#addon_show-hint): Prevent widget scrollbar from hiding part of the hint text.

[rulers addon](http://codemirror.net/doc/manual.html#addon_rulers): Prevent rulers from forcing a horizontal editor scrollbar.

### New features

[search addon](http://codemirror.net/doc/manual.html#addon_search): Automatically bind search-related keys in persistent dialog.

[sublime keymap](http://codemirror.net/demo/sublime.html): Add a multi-cursor aware smart backspace binding.
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