Reset user scroll when the buffer is cleared. Change the convenience accessor for verticalScroller to ptyVerticalScroller since in xcode 9 you can no longer override a superclass method and change the return type to a subclass of the method's original return type. Issue 6174

Add iTermCallWithTimeout since 10.13 has a lot of system calls that never return. Prevent proc_pidinfo for hanging for more than half a second.

Update colorpicker to use latest project settings and warnings. Fix a bug where the eyedropper window is never hidden on 10.13. Issue 6171

When the autocomplete window opens and then discovers it has no results and closes it causes a nonpinned hotkey window to close because the window gets closed before becoming key. That confuses the very complex logic for autohiding. To make the smallest possible change, I do a dispatch async on the close to order it properly. Issue 6169.

Prevent statfs from hanging the app for more than half a second in the face of broken network filesystems. Issue 6110

Don't set desiredRows_/desiredColumns_ when adding a tab to an existing window. It should stay at the value set by the first tab. Issue 6141.

Fix warnings introduced in Xcode 9

Fix vertical alignment of 'Paste' button in advanced paste.

actually allows this if screens don't have their own spaces. Issue 6125

This fixes both deadkeys alone (e.g., ` on a DE keyboard) or deadkey+key (opt+` on DE to give '). I tested migration from 3.0 and it seems fine.

If no local authentication policy can succeed, then authenticate the password manager. This is the previous behavior from 3.1.1. Apparently OS X 10.11 has the APIs but can't authenticate with them. Issue 6113

Disable High Sierra's system tabs, which you can get when System Prefs > Docks > Prefer tabs when opening documents is set to Always. Issue 6096