Remove redundant projects label

As discussed with nigel, this label doesnt really make sense.
It is confusing because you might thing you should click it
and tab widgets do not usually require labels to indicate that
you should press them.

src/plugins/projectexplorer/doubletabwidget.cpp

@@ -140,7 +140,9 @@ void DoubleTabWidget::mousePressEvent(QMouseEvent *event)
         int eventX = event->x();
         // clicked on the top level part of the bar
         QFontMetrics fm(font());
-        int x = 2 * MARGIN + qMax(fm.width(m_title), MIN_LEFT_MARGIN);
+        int x = m_title.isEmpty() ? 0 :
+                2 * MARGIN + qMax(fm.width(m_title), MIN_LEFT_MARGIN);
+
         if (eventX <= x)
             return;
         int i;
@@ -238,8 +240,10 @@ void DoubleTabWidget::paintEvent(QPaintEvent *event)
     int baseline = (r.height() + fm.ascent()) / 2 - 1;
 
     // top level title
-    painter.setPen(Utils::StyleHelper::panelTextColor());
-    painter.drawText(MARGIN, baseline, m_title);
+    if (!m_title.isEmpty()) {
+        painter.setPen(Utils::StyleHelper::panelTextColor());
+        painter.drawText(MARGIN, baseline, m_title);
+    }
 
     QLinearGradient grad(QPoint(0, 0), QPoint(0, r.height() + OTHER_HEIGHT - 1));
     grad.setColorAt(0, QColor(247, 247, 247));
@@ -255,7 +259,8 @@ void DoubleTabWidget::paintEvent(QPaintEvent *event)
                      r.width(), r.height());
 
     // top level tabs
-    int x = 2 * MARGIN + qMax(fm.width(m_title), MIN_LEFT_MARGIN);
+    int x = m_title.isEmpty() ? 0 :
+            2 * MARGIN + qMax(fm.width(m_title), MIN_LEFT_MARGIN);
 
     // calculate sizes
     QList<int> nameWidth;
@@ -331,6 +336,11 @@ void DoubleTabWidget::paintEvent(QPaintEvent *event)
                                    2 * MARGIN + fm.width(tab.name),
                                    r.height() + 1),
                              grad);
+
+            if (actualIndex != 0) {
+                painter.setPen(QColor(255, 255, 255, 170));
+                painter.drawLine(x, 0, x, r.height());
+            }
             x += MARGIN;
             painter.setPen(Qt::black);
             painter.drawText(x, baseline, tab.name);
@@ -338,6 +348,10 @@ void DoubleTabWidget::paintEvent(QPaintEvent *event)
             x += MARGIN;
             painter.setPen(Utils::StyleHelper::borderColor());
             painter.drawLine(x, 0, x, r.height() - 1);
+            painter.setPen(QColor(0, 0, 0, 20));
+            painter.drawLine(x + 1, 0, x + 1, r.height() - 1);
+            painter.setPen(QColor(255, 255, 255, 170));
+            painter.drawLine(x - 1, 0, x - 1, r.height());
         } else {
             if (i == 0)
                 drawFirstLevelSeparator(&painter, QPoint(x, 0), QPoint(x, r.height()-1));

src/plugins/projectexplorer/projectwindow.cpp

@@ -263,7 +263,6 @@ ProjectWindow::ProjectWindow(QWidget *parent)
     viewLayout->setSpacing(0);
 
     m_tabWidget = new DoubleTabWidget(this);
-    m_tabWidget->setTitle(tr("Select a Project:"));
     viewLayout->addWidget(m_tabWidget);
 
     // Setup our container for the contents: