We now specify intrins as separate DAPS lines. This syntax is much
nicer and well-grouped than the previous negtrin-*/postrin-* param
names.
Alas, we're about to replace it in the next few commits already though.
We modify the semantics/meaning of the ambience stim feature.
It now represents the number of frames whose average intensity
is below the ambienceLowVal.
We can now implement the postrin as the event wherein the number
of frames whose intensity <= ambienceLowVal exceeds
postrin-interest-threshold.
Includes everything from sending heartbeat msgs to performing
the connection handshake. We also accept many params to
provider-params to customize and make things easier.