- many updates after Cwise change

- fix compilation in product.cpp with std::complex
- fix bug in MatrixBase::operator!=

doc/snippets/MatrixBase_map.cpp

@@ -1,5 +0,0 @@
-int data[4] = {1,3,0,2};
-cout << Matrix2i::map(data) << endl;
-Matrix2i::map(data) *= 2;
-cout << "The data is now:" << endl;
-for(int i = 0; i < 4; i++) cout << data[i] << endl;

doc/snippets/MatrixBase_map_int.cpp

@@ -1,5 +0,0 @@
-int data[4] = {1,3,0,2};
-cout << VectorXi::map(data, 4) << endl;
-VectorXi::map(data, 4) *= 2;
-cout << "The data is now:" << endl;
-for(int i = 0; i < 4; i++) cout << data[i] << endl;

doc/snippets/MatrixBase_map_int_int.cpp

@@ -1,5 +0,0 @@
-int data[4] = {1,3,0,2};
-cout << MatrixXi::map(data, 2, 2) << endl;
-MatrixXi::map(data, 2, 2) *= 2;
-cout << "The data is now:" << endl;
-for(int i = 0; i < 4; i++) cout << data[i] << endl;