Add __version__

Author: oscarbenjamin

src/flint/__init__.py

@@ -1 +1,3 @@
 from ._flint import *
+
+__version__ = '0.4.0'

test/test.py

@@ -29,6 +29,9 @@ def raises(f, exception):
 """
 
 def test_pyflint():
+
+    assert flint.__version__ == "0.4.0"
+
     ctx = flint.ctx
     assert str(ctx) == repr(ctx) == _default_ctx_string
     assert ctx.prec == 53