i_prog takes its value from i_num_pmt which can't be negative, nor > 64

cosmetics, reindent

ref: rfc 3555

Note that MUX_MIME_TYPE is currently never used

simplify CSA setup

it's in libdvbpsi since 2004

Give it some holidays after 6 to 8 years being disabled.

It is broken

also make sure that the hotkeys plugin displays the correct string when autoscaling the vout