Fixes to Octave examples

- rename example modules from "example" to "swigexample", to avoid a
  warning from shadowing the Octave built-in function "example"
- remove deprecated "static" Makefile targets: there is no longer
  an option to build static Octave modules in the Examples Makefile
- emacs whitespace cleanup run on all files

Examples/octave/reference/example.h

@@ -20,7 +20,3 @@ public:
   Vector &operator[](int);
   int size();
 };
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