Merge branch 'vadz-csharp-complex'

* vadz-csharp-complex:
  Add header to std_complex.i
  Fix linkage problems in C# std::complex wrappers
  C# std::complex wrappers marshalling by value
  C# std::complex wrappers SwigValueWrapper fix
  Use %naturalvar for C# std::complex wrappers
  Allow avoiding generation of unwanted std::complex<T> typemaps
  Also apply csvar{in,out} typemaps to std::complex references
  Add std_complex.i for C# too
  Extend C# complex support to member variables of this type
  Add support for std::complex<> to C#
  Use new unified Mono mcs compiler if available under Unix

Examples/test-suite/python/complextest_runme.py

@@ -15,3 +15,9 @@ try:
     complextest.Copy_h(v)
 except:
     pass
+
+p = complextest.ComplexPair()
+p.z1 = complex(0, 1)
+p.z2 = complex(0, -1)
+if complextest.Conj(p.z2) != p.z1:
+    raise RuntimeError, "bad complex mapping"