#11 rapidxml_utils build warning - v1.13

[drsurgeon]

rapidxml::file<> xml_file("asdf.xml");

The above line of code now generates a build warning under VS2010, using updated STL libraries that incorporate some C++0x features.

...\rapidxml\rapidxml_utils.hpp(40): warning C4244: 'initializing' : conversion from 'std::streamoff' to 'size_t', possible loss of data

While this still builds and works fine, it would be nice to build without the warning.

Thanks.

[drsurgeon]

Fix for build warning with additional check for file being in bounds