Travis: Initiating build for commit 'ee0ed65a417df1d22221f321718d5d34e767be75' on branch 'master': Fixes #4991  Deprecated the function Schema::dropTables() and DbHelper::dropTables.
Please use the new Db::dropTables() instead.
Next time we will give a bit more head-ups so you have more time to modify plugins. Thanks!