Merge branch 'go1.5.2' into 'master'

Use Go 1.5.2 for tests



See merge request !15

.gitlab-ci.yml

@@ -2,9 +2,9 @@ before_script:
   - rm -rf /usr/local/go
   - apt-get update -qq
   - apt-get install -y curl unzip bzip2
-  - curl -O https://storage.googleapis.com/golang/go1.5.1.linux-amd64.tar.gz
-  - echo '46eecd290d8803887dec718c691cc243f2175fe0  go1.5.1.linux-amd64.tar.gz' | shasum -c -
-  - tar -C /usr/local -xzf go1.5.1.linux-amd64.tar.gz
+  - curl -O https://storage.googleapis.com/golang/go1.5.2.linux-amd64.tar.gz
+  - echo 'cae87ed095e8d94a81871281d35da7829bd1234e  go1.5.2.linux-amd64.tar.gz' | shasum -c -
+  - tar -C /usr/local -xzf go1.5.2.linux-amd64.tar.gz
   - export PATH=/usr/local/go/bin:$PATH
 
 test: