update tests for 0.6.2 behavior with "small numbers"

Author: mrjbq7

tests/test_func.py

@@ -164,7 +164,7 @@ def test_RSI():
       0.00000024, 0.00000024, 0.00000023,
       0.00000023, 0.00000023], dtype='float64')
     result = func.RSI(a, 10)
-    assert_array_equal(result, [np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,0,0,0,0,0,0,0,0,0,0])
+    assert_array_almost_equal(result, [np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,33.333333333333329,51.351351351351347,39.491916859122398,51.84807024709005,42.25953803191981,52.101824405061215,52.101824405061215,43.043664867691085,43.043664867691085,43.043664867691085])
     result = func.RSI(a * 100000, 10)
     assert_array_almost_equal(result, [np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,np.nan,33.333333333333329,51.351351351351347,39.491916859122398,51.84807024709005,42.25953803191981,52.101824405061215,52.101824405061215,43.043664867691085,43.043664867691085,43.043664867691085])