Show anomaly list in ride editor controls

The ride editor does a pretty good job of finding anomalies
in the ride data, and to help it underlines the anomalies with
a wiggly red line and adds a tooltip to explain.

But, you have to scroll up and down the file to look for them
and when you are scrolling at high speed the wavy lines are
difficult to spot.

This patch updates the ride editor controls (which previously
only had the find dialog) and adds a list of anomalies at the
bottom. You can click on an anomaly to jump to it in the ride
data.

src/MainWindow.cpp

@@ -345,7 +345,9 @@ MainWindow::MainWindow(const QDir &home) :
                            "background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
                            "stop: 0 #CFCFCF, stop: 1.0 #A8A8A8);"
                            "border: 1px solid rgba(255, 255, 255, 32);"
+#if 0
                            "color: #535353;"
+#endif
                            "font-weight: bold; }");
 
     toolBox->setFrameStyle(QFrame::NoFrame);
@@ -459,7 +461,6 @@ MainWindow::MainWindow(const QDir &home) :
     splitter->setChildrenCollapsible(false); // QT BUG crash QTextLayout do not undo this
     splitter->setHandleWidth(1);
     splitter->setFrameStyle(QFrame::NoFrame);
-    splitter->setStyleSheet("QSplitter { border: 0px; background-color: #A8A8A8; }");
     splitter->setContentsMargins(0, 0, 0, 0); // attempting to follow some UI guides
     setCentralWidget(splitter);