Moved rsync exclusions to a separate file.

.travis.yml

@@ -28,6 +28,6 @@ before_deploy:
 deploy:
   provider: script
   skip_cleanup: true
-  script: rsync -r -c -v --delete-after --exclude '*.pem' --exclude '*.enc' --exclude '*.sh' $TRAVIS_BUILD_DIR/_site/ $user@$hostname:$production_path
+  script: rsync -r -c -v --delete-after --exclude-from 'ciexclude.txt' $TRAVIS_BUILD_DIR/_site/ $user@$hostname:$production_path
   on:
     branch: master

_config.yml

@@ -2,6 +2,7 @@ markdown: kramdown
 exclude:
   - README.md
   - rss.xml
+  - ciexclude.txt
   - _posts/README.md
   - assets/mockups/
   - vendor/

ciexclude.txt

@@ -0,0 +1,3 @@
+*.pem
+*.enc
+*.sh