[TASK] Add typo3 8.7 to travis
[TASK] Add typo3 8.7 to travis

benjaminkott/bootstrap_package,MediaCluster/bootstrap_package,stweil/bootstrap_package,benjaminkott/bootstrap_package,maddy2101/bootstrap_package,maddy2101/bootstrap_package,MediaCluster/bootstrap_package,stweil/bootstrap_package,benjaminkott/bootstrap_package,stweil/bootstrap_package,MediaCluster/bootstrap_package,stweil/bootstrap_package,maddy2101/bootstrap_package,benjaminkott/bootstrap_package