Update audio/festival to version 2.1
Tweak audio/festvox-rab16 version 1.4.1_2
Tweak audio/festvox-rab8 version 1.4.1_2
Tweak audio/festlex-oald version 1.4.1_1
Tweak audio/festvox-don version 1.4.0_2
Tweak audio/festvox-el11 version 1.4.0_2