Make double-clicking in command history or recent directories tool change...

Make double-clicking in command history or recent directories tool change focus to the session. Hold shift during a command click to append a newline.

sources/PseudoTerminal.m

@@ -7241,6 +7241,7 @@ static NSString* TERMINAL_ARRANGEMENT_HIDING_TOOLBELT_SHOULD_RESIZE_WINDOW = @"H
 - (void)toolbeltInsertText:(NSString *)text {
     [[[self currentSession] textview] insertText:text];
+    [[self currentSession] takeFocus];
 }
 - (VT100RemoteHost *)toolbeltCurrentHost {

sources/ToolCommandHistoryView.m

@@ -277,6 +277,9 @@ static const CGFloat kHelpMargin = 5;
             return;
         }
     }
+    if (([[NSApp currentEvent] modifierFlags] & NSShiftKeyMask)) {
+        text = [text stringByAppendingString:@"\n"];
+    }
     [wrapper.delegate.delegate toolbeltInsertText:text];
 }

sources/ToolDirectoriesView.m

@@ -230,6 +230,9 @@ static const CGFloat kHelpMargin = 5;
     } else {
         text = entry.path;
     }
+    if (([[NSApp currentEvent] modifierFlags] & NSShiftKeyMask)) {
+        text = [text stringByAppendingString:@"\n"];
+    }
     [wrapper.delegate.delegate toolbeltInsertText:text];
 }