Update matplotlib from 2.0.2 to 2.1.2
Update matplotlib from 2.0.2 to 2.1.2

Former-commit-id: 700ded08bf86a24c8d957e13f86b1c41ba6f2758 [formerly 3d7cf8ee4ba3d09ad931b783ef0e7460899d9694] [formerly 2572cc4fddb2839791b58b706dec8d0aa85b40a1 [formerly 51afc95f46467569ad6181816490db09892d39c0]]
Former-commit-id: e79487140e4709d02ef026a987b5c4dfed95c668 [formerly 348fcab34917ea1b9c86ad2598e96ba7acbf08a3]
Former-commit-id: 452a61b81c2bf36171ca01af44144684d1a0e801
jason-neal/eniric,jason-neal/eniric