Add dependencies for pyodbc on xenial

Author: OskarPersson

.travis.yml

@@ -29,7 +29,7 @@ matrix:
         - curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
         - curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list | sudo tee /etc/apt/sources.list.d/mssql-release.list
         - sudo apt-get update
-        - sudo ACCEPT_EULA=Y apt-get install msodbcsql17
+        - sudo ACCEPT_EULA=Y apt-get install -y msodbcsql17 g++ unixodbc-dev
       env:
         - *mssql