Update and fix deployment dependency versions

Author: QuLogic

.circleci/config.yml

@@ -23,22 +23,26 @@ jobs:
 
   deploy:
     docker:
-      - image: "node:8.10.0"
+      - image: "node:current"
     steps:
+      - checkout
       - attach_workspace:
           at: html
       - run:
           name: Install and configure dependencies
           command: |
-            npm install -g --silent gh-pages@2.0.1
-            git config user.email "MatplotlibCircleBot@nomail"
-            git config user.name "MatplotlibCircleBot"
+            # Old version used because of gh-pages bug:
+            # https://github.com/tschaub/gh-pages/issues/354
+            npm install -g --silent gh-pages@3.0.0
+            git config --global user.email "MatplotlibCircleBot@nomail"
+            git config --global user.name "MatplotlibCircleBot"
       - add_ssh_keys:
           fingerprints:
             - "25:2e:77:93:7e:0e:af:77:b0:be:e7:fe:86:2c:5b:96"
       - run:
           name: "Deploy new docs"
           command: |
+            rm html/.buildinfo
             touch html/.nojekyll  # Disable jekyll builds on GitHub.
             gh-pages \
               --dotfiles \