Encrypt token for target repo

.travis.yml

@@ -25,7 +25,7 @@ addons:
 env:
   global:
     - GH_REF: github.com/scikit-image/docs.git
-    - secure: "k646ELF4CfE/S5F1dVeAn8XXdqqWdrHNgTOlZhW9BiC+nLiHU8ADlh+hKlibUWXuT0e1mv9utEkRNwj+MLZ3nSnqXoyLzQaRR2Nd8ldaclhQOIi0QOcsae9oFtCfsFosF40tjEXEmXsh2W81g557y81yEzk7RjE4PpWNnPJe8qM="
+    - secure: "ba3xugaHqtd76pnq5kmjtlqGXpzqcE0JvDrBg0mkIuDWvaLBlaTpOud89KK0FNf1ZbMuwkIEyERdrzp24xj03Fyw+FlL4Th/LjlcoxUuMjatuxNq2sBOpUBYYJLef4Trfis+pTcyf8BjMBWdK0rouxBKwZl1QGn9ToDJ9Iu0FCY="
 
 notifications:
   webhooks:

tools/deploy_docs.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
-if [[ $TRAVIS_BRANCH == "master" && $TRAVIS_PYTHON_VERSION == 3.4 ]]
+if [[ $TRAVIS_PULL_REQUEST == false && $TRAVIS_BRANCH == "master" && 
+      $TRAVIS_PYTHON_VERSION == 3.4 ]]
 then
     # See https://help.github.com/articles/creating-an-access-token-for-command-line-use/ for how to generate a token
     # See http://docs.travis-ci.com/user/encryption-keys/ for how to generate 
@@ -17,7 +18,7 @@ then
 
     git add dev
     git commit -m "Deployed to GitHub Pages"
-    git push --force --quiet "https://${GH_TOKEN}@${GH_REF}" gh-pages
+    git push --force --quiet "https://${GH_TOKEN}@${GH_REF}" gh-pages > /dev/null 2>&1
     )
 else
     echo "-- will only push docs from master --"