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/callback/example.h

@@ -20,4 +20,3 @@ public:
 	void setCallback(Callback *cb) { delCallback(); _callback = cb; }
 	void call() { if (_callback) _callback->run(); }
 };
-