Update matplotlib from 2.1.2 to 2.2.0
Update matplotlib from 2.1.2 to 2.2.0

Former-commit-id: f5cd2d5d7f8627c6a8190aa802348886579ea469 [formerly 2be418363a26d42b13894c1c62165908e705d098] [formerly 6547ccbaeffc8bdd76e49e8a90f642105a48945b [formerly c3ab7f5c551878c56fad486487b235b5ab0ea16a]]
Former-commit-id: c5d000c362b408aa422d2062fce541ad7af5f731 [formerly 0a1cad51cec69a9e6048540739e60c1ea79c4e0e]
Former-commit-id: 8cb017d173ae416d26c7d9f8dbe22aee57444d1d
jason-neal/eniric,jason-neal/eniric