Calls to $table->index() from migrations generate error

[jonphipps]

The version of https://github.com/UserScape/Laravel-Bundles/blob/master/laravel/database/schema/table.php included in the code requires an index name that isn't provided by the migrations calls to the $table->index() method.

Probably not the best way to handle it, but I replaced the table.php file with the 3.1 version of the file and that solved the problem, since the 3.1 method makes index name optional.