Protobuf 2.6.0 support

[C-h-e-r-r-y]

For now it is impossible to generate scala classes with oneof fields.

<unknown> '}' expected but 'o' found
oneof my_value {

With proto like that:

message MyMessage {
    oneof my_value {
        string stringvalue = 1;
        double doublevalue = 2;
    }
}

[andi1400]

just ran into the same issue. Is there any support planned for this?