NiTE: UserViewer segfaults on exit

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The NiTE 2.2 sample UserViewer segfaults on exit on Linux 3.8.13 with gcc 4.6.3.

Program received signal SIGSEGV, Segmentation fault.
0x000000389aa7d6dd in ?? () from /lib64/libc.so.6
(gdb) backtrace
#0  0x000000389aa7d6dd in ?? () from /lib64/libc.so.6
#1  0x000000389aa7e1f8 in ?? () from /lib64/libc.so.6
#2  0x00007ffff74ffea4 in NACommonData::~NACommonData() () from ./libNiTE2.so
#3  0x00007ffff748f711 in UserTracker::~UserTracker() () from ./libNiTE2.so
#4  0x00007ffff748fc09 in UserTracker::~UserTracker() () from ./libNiTE2.so
#5  0x00007ffff7493677 in niteShutdownUserTracker () from ./libNiTE2.so
#6  0x000000000040248a in SampleViewer::Finalize() ()
#7  0x000000000040251b in SampleViewer::OnKey(unsigned char, int, int) ()
#8  0x00007ffff7db0c5d in glutMainLoopEvent () from /usr/lib64/libglut.so.3
#9  0x00007ffff7db1025 in glutMainLoop () from /usr/lib64/libglut.so.3
#10 0x0000000000401ef9 in SampleViewer::Run() ()
#11 0x0000000000401d89 in main ()