Merge pull request #17 from CardiacModelling/dependabot/pip/tornado-6.4.2

Bump tornado from 6.4.1 to 6.4.2

Author: mirams

requirements.txt

@@ -66,7 +66,7 @@ tabulate==0.8.9
 terminado==0.12.1 
 testpath==0.5.0 
 threadpoolctl==3.0.0 
-tornado==6.4.1 
+tornado==6.4.2 
 traitlets==5.1.1 
 wcwidth==0.2.5 
 webencodings==0.5.1