Fix MQ Developer scripts to allow centos image building

.travis.yml

@@ -1,3 +1,17 @@
+# © Copyright IBM Corporation 2018
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 sudo: required
 language: go
 
@@ -13,6 +27,10 @@ cache:
   directories:
     - downloads
 
+env:
+  - BASE_IMAGE=ubuntu:16.04
+  - BASE_IMAGE=centos:latest
+
 jobs:
   include:
     - if: type IN (pull_request)