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/operator/example.i

@@ -1,5 +1,5 @@
 /* File : example.i */
-%module example
+%module swigexample
 #pragma SWIG nowarn=SWIGWARN_IGNORE_OPERATOR_EQ
 %{
 #include "example.h"