BUILD/MEDIUM: add haproxy and dataplane binaries to travis

.travis.yml

@@ -2,6 +2,20 @@ language: go
 go:
 - 1.x
 sudo: false
+before_script:
+  - sudo wget https://github.com/haproxytech/dataplaneapi/releases/download/v1.2.5/dataplaneapi -O /usr/local/bin/dataplaneapi
+  - sudo chmod +x /usr/local/bin/dataplaneapi
+install:
+  - wget http://www.haproxy.org/download/2.0/src/haproxy-2.0.14.tar.gz
+  - tar -zxvf haproxy-2.0.14.tar.gz
+  - pushd haproxy-2.0.14 && make TARGET=linux-glibc USE_OPENSSL=1 USE_ZLIB=1 USE_PCRE=1 && sudo make install && popd
+addons:
+  apt:
+    update: true
+    packages:
+      - libssl-dev
+      - zlib1g-dev
+      - libpcre3-dev
 before_deploy:
 - echo "Deploying $TRAVIS_TAG to GitHub releases"
 - tar czf haproxy-connect.tar.gz haproxy-connect