Fix failing tests on Windows

[dmitrisvetlov]

Totals:
57 Passed, 8 Failed (rerun), 7 Incomplete.
573.5988 seconds testing time.

Failure Summary:

     Name                               Failed  Incomplete  Reason(s)
    ================================================================================
     poissonTest/TestFIM                  X         X       Errored.
    --------------------------------------------------------------------------------
     poissonTest/TestFIMwPrior            X         X       Errored.
    --------------------------------------------------------------------------------
     poissonTest/MetHastAndSampledFIM     X         X       Errored.
    --------------------------------------------------------------------------------
     miscelaneousTests/testCommandLine    X                 Failed by verification.
    --------------------------------------------------------------------------------
     multiModelTests/testFIM              X         X       Errored.
    --------------------------------------------------------------------------------
     testGui/test_ssa_tab_options         X         X       Errored.
    --------------------------------------------------------------------------------
     testGui/test_change_to_FIM_tab       X         X       Errored.
    --------------------------------------------------------------------------------
     testGui/test_load_complex_model      X         X       Errored.

[dmitrisvetlov]

This is a parent issue; child issues will be categorized as bugs as appropriate.

[Munsky]

Of these, the test
testGui/test_ssa_tab_options
is also currently failing on MAC, and I am looking into it.

The test miscelaneousTests/testCommandLine is set skip except on Mac.

With the tensor padding change (#42), the rest should now pass.