Qml JS Inspector: Added context crumble path as a dock widget

The crumble path shows the current context of the debugger/inspector.

src/plugins/qmljsinspector/qmljscontextcrumblepath.cpp

@@ -0,0 +1,29 @@
+#include "qmljscontextcrumblepath.h"
+
+#include <QMouseEvent>
+#include <QDebug>
+
+namespace QmlJSInspector {
+namespace Internal {
+
+ContextCrumblePath::ContextCrumblePath(QWidget *parent)
+    : CrumblePath(parent)
+{
+    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+}
+
+ContextCrumblePath::~ContextCrumblePath()
+{
+
+}
+
+void ContextCrumblePath::updateContextPath(const QStringList &path)
+{
+    clear();
+    foreach(const QString &pathPart, path) {
+        pushElement(pathPart);
+    }
+}
+
+} // namespace Internal
+} // namespace QmlJSInspector