#10 Test suite doesn't work on windows

[James Sweet]

The test suite fails to find the data comparator.

******************************** NMMTest.stdout ********************************

ERROR missing DataComparator please run scons in test root
ERROR missing DataComparator please run scons in test root
**************************** NMMTest.stdout.expect *****************************

Frames: 1 Atoms: 22
Frames: 1 Atoms: 22
Files match
1675 byte xyz