Use Travis' GH Pages deploy features

Intead of the deploy.sh script

Author: szarnyasg

.travis.yml

@@ -3,10 +3,6 @@ jdk:
 - openjdk8
 python:
 - '2.7'
-env:
-  global:
-  - GH_REF=github.com/ldbc/ldbc_snb_datagen.git
-  - secure: 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
 install: true
 script:
 - mvn test | grep "^\\[" | tee mvn.log
@@ -19,10 +15,18 @@ script:
 - export HADOOP_HOME=`pwd`/hadoop-2.6.0
 - export LDBC_SNB_DATAGEN_HOME=`pwd`
 - ./run.sh
-# deploy subtitution parameters to gh-pages branch
-- if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then ./deploy.sh; fi
+- mkdir out
+- cp -r substitution_parameters out/
 notifications:
   slack: ldbcouncil:OrBanrJ7l0EHQbj8T5YdJYhd
   email: false
   on_success: change
   on_failure: always
+deploy:
+  provider: pages
+  skip-cleanup: true
+  local-dir: out
+  github-token: $GITHUB_TOKEN
+  keep: true
+  on:
+    branch: master