Support for deleting tags

When parsing tags, also keep track of the checkin uuid
Fixed key-value parsing
Prevent apply stash when nothing is selected

FossilOrigin-Name: 72ac541c4c28f83c94c371f2d81e116b8f3cf261

src/Utils.cpp

@@ -320,7 +320,7 @@ void ParseProperties(QStringMap &properties, const QStringList &lines, QChar sep
 		if(index!=-1)
 		{
 			key = l.left(index).trimmed();
-			value = l.mid(index).trimmed();
+			value = l.mid(index+1).trimmed();
 		}
 		else
 			key = l;