Add small test for version variable

tqdm/tests/tests_version.py

@@ -0,0 +1,13 @@
+from __future__ import unicode_literals
+
+import csv
+
+try:
+    from StringIO import StringIO
+except:
+    from io import StringIO
+
+
+def test_version():
+    from tqdm import __version__
+    assert len(__version__.split('.')) == 4