Changes to economic formulas used by Blurt front-ends

This post is specific to admins of Blurt front-ends that show economic values, such as pending rewards. It will thus be quite brief and to the point. I have included some things that haven't changed.

1. Calculation of votes into rshares has not changed.

2. The vote-dust-threshold has changed from 50 million rshares to zero.
   Many never put this in, but do check if it is.

3. The reward-curve formula has remained the same except change the content-constant from 2e12 to 2e9; so from 2000000000000 to 2000000000.

4. The curation-curve is unchanged.

5. The final reward calculation in BLURT is now =

(( rf * claim ) / total_claims) * (staked_supply / current_supply)

alternatively (and as markdown is very annoying for maths),

(rf x claim x staked_supply)/(total_claims x current_supply)

rf=reward pool fund
claim = post claims (from the reward curve)
staked_supply and current_supply in BLURT.

This is now quite a heavy calculation but, without any loss of precision, it may be faster to use the integer values of the staked_supply and the current_supply. The error is small enough not to notice in the pending rewards.

Any questions, please ask. If you would like any further assistance, please get in contact on discord and I can look at your formulas; you may, of course, post them in a comment too.

Thanks

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Please vote for my witness account @busbecq.
Can be done directly here.
Thanks!

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