Fix up all doxygen warnings.

doc/Manual.dox

@@ -40,7 +40,6 @@ namespace Eigen {
   - \subpage TopicVectorization
   - \subpage TopicEigenExpressionTemplates
   - \subpage TopicScalarTypes
-  - \subpage GettingStarted
   - \subpage TutorialSparse_example_details
   - \subpage TopicWritingEfficientProductExpression
   - \subpage Experimental
@@ -115,7 +114,7 @@ namespace Eigen {
     \ingroup DenseLinearSolvers_chapter */
 /** \addtogroup TopicLinearAlgebraDecompositions
     \ingroup DenseLinearSolvers_chapter */
-/** \addtogroup LeastSquares 
+/** \addtogroup LeastSquares
     \ingroup DenseLinearSolvers_chapter */
 /** \addtogroup InplaceDecomposition
     \ingroup DenseLinearSolvers_chapter */
@@ -165,7 +164,7 @@ namespace Eigen {
 /** \addtogroup Sparse_Module
     \ingroup Sparse_Reference */
 /** \addtogroup Support_modules
-    \ingroup Sparse_Reference */    
+    \ingroup Sparse_Reference */
 
 /** \addtogroup SparseQuickRefPage
     \ingroup Sparse_chapter */
@@ -176,7 +175,7 @@ namespace Eigen {
 
 /** \addtogroup TutorialGeometry
     \ingroup Geometry_chapter */
-    
+
 /** \addtogroup Geometry_Reference
     \ingroup Geometry_chapter */
 /** \addtogroup Geometry_Module