Fix uninitialized member variable.

- This would randomly prevent the inspector window from being usable
  since we wouldn't create it, thinking it already existed.

src/apps/debugger/user_interface/gui/team_window/TeamWindow.cpp

@@ -109,6 +109,7 @@ TeamWindow::TeamWindow(::Team* team, UserInterfaceListener* listener)
 	fStepOverButton(NULL),
 	fStepIntoButton(NULL),
 	fStepOutButton(NULL),
+	fInspectorWindow(NULL),
 	fSourceLocatePanel(NULL)
 {
 	fTeam->Lock();