Access to CMPIContext through ContextWrap.

Hello,

I've come into this issue with ContextWrap class. According to this snippet from `swig/cmpi_types.i:1623`:
```c
    TARGET_THREAD_BEGIN_BLOCK;
    tdata = data_data(&data);
#if defined (SWIGPYTHON)
    result = PyTuple_New(2);
    PyTuple_SetItem(result, 0, PyString_FromString(name));
    PyTuple_SetItem(result, 1, tdata);
#else
    result = Target_SizedArray(2);
    Target_Append(result, Target_String(name));
    Target_Append(result, tdata);
#endif
```
The data attribute comes as second after the name. I've tested this under tog-pegasus but haven't checked the other bindings.