Merge pull request #194 from mpdavis/dependabot/pip/cryptography-3.2

Bump cryptography from 2.4.2 to 3.2

Author: blag

requirements-dev.txt

@@ -2,7 +2,7 @@ PyYAML==5.1
 cov-core==1.15.0
 coverage==4.4
 coveralls==1.5.1
-cryptography==2.4.2
+cryptography==3.2
 docopt==0.6.2
 nose==1.3.6
 py==1.5.4