Test function name containing < and > is not considered valid.

We test templated c++ functions using boost test's template binding test tool BOOST_AUTO_TEST_CASE_TEMPLATE. This results in the names of the unit tests containing the templated parameter type, e.g. TestExample<int>, TestExample<double>. These names appear in the output XML like so:

<TestCase name="TestExample<int>">
...
...
</TestCase>

When xunit comes to parse this, the following error is raised:

[xUnit] [WARNING] - At line 1 of file:/D:/Develop/boost-test-TestGeneral.xml:cvc-datatype-valid.1.2.1: 'TestAddX<int>' is not a valid value for 'NMTOKEN'.
[xUnit] [WARNING] - At line 1 of file:/D:/Develop/boost-test-TestGeneral.xml:cvc-attribute.3: The value 'TestAddX<int>' of attribute 'name' on element 'TestCase' is not valid with respect to its type, 'NMTOKEN'.