Added 3.1.0 and 3.1.1 to Travis matrix

Author: pesse

.travis.yml

@@ -27,6 +27,8 @@ env:
     - UTPLSQL_VERSION="v3.0.2"
     - UTPLSQL_VERSION="v3.0.3"
     - UTPLSQL_VERSION="v3.0.4"
+    - UTPLSQL_VERSION="v3.1.0"
+    - UTPLSQL_VERSION="v3.1.1"
     - UTPLSQL_VERSION="develop"
       UTPLSQL_FILE="utPLSQL"