ENH: Add transferOwnership parameter to setValues(std::vector<T> & array) to match other setValues(const T * const array) --- clarification of ownership for non-shared_ptr arrays.

ENH: Add ArrayPointer Variant to allow users to use XdmfArray merely as a "pointer holder" for output using Xdmf.  See the docs for a more clear explanation.  Modify XdmfArray methods to correctly use the ArrayPointer.

ENH: Remove XdmfPython.cpp and Xdmf.py from repository.  Modify CMake build script to generate wrappers automagically with swig (this will ensure that users always have swig wrapper tailored to their version of python and prevents us from having to regenerate and commit every time something in Xdmf changes).  Add a couple extra methods to XdmfArray.cpp --- still need to figure out the rest of XdmfArray functionality.

ENH: Add initialize() method that allows user to specify the type of data to store in an XdmfArray if desired.

ENH: Add swap method to XdmfArray.  Swap works by swapping an XdmfArray's contents internally (no copy) between a std::vector<T>, boost::shared_ptr<std::vector<T> > or another XdmfArray.  Modify some methods in XdmfArray that did not require visitor operation but can just catch boost::bad_get exceptions.

STYLE: Split XdmfArray.tpp from XdmfArray.hpp --- this will hold template implementations for XdmfArray instead of stuffing them all in XdmfArray.hpp (merely a style difference).  Do some minor formatting on some other files.

unnecessarily duplicated functionality.

ENH: Modify XdmfArray to have a std::vector like interface except for inset, which is replaced in XdmfArray with copyValues (for name clarity and ability to stride)
Modify tests to use new functions
Significantly modify swig python wrapping to easily store values from python lists in XdmfArrays.

BUG: Fix bug when trying to get a smart pointer to a vector type not stored in XdmfArray... If this is the case, just return NULL,
This could potentially be very useful.

ENH: Remove non const getValuesPointer for now.  Rename getValues as getValuesString() and add getValues that returns a smart pointer to the internal array.

ENH: Add Smart Pointers to XdmfArray implementation.  Modify some method names to be more clear about whether copying is being
performed when setting values in the array.  Modify tests to use new names and regenerate python wrappers.

	Add XdmfArray to store values --- modify XdmfDataItem to contain an XdmfArray.
	Modify Tests to use new XdmfArray.
	Modify XdmfVisitor to use new XdmfArray.
	Add Python Tests and move Cxx tests to their own directory.