Disable notification on normal success Travis build
Disable notification on normal success Travis build

Always notify when fail, notify on sucess after fail.
Do not notify on PR builds.

johnathan99j/history-project,newtheatre/history-project,newtheatre/history-project,johnathan99j/history-project,newtheatre/history-project,newtheatre/history-project,johnathan99j/history-project,johnathan99j/history-project,johnathan99j/history-project,newtheatre/history-project