Updated WUS system

See merge request !77

Updated CEUS zone source rates.

See merge request !76

Updated/fixed the rates being used in the new CEUS zone sources. Was the middle value (wrong) and now it's the weighted mean of the rate distribution (correct).

added alpha to model name

See merge request !75

Added M7.95 bin

See merge request !74

use slab2 depths

See merge request !73

updated with aftershock filter off

See merge request !72

Replace stable-crust spatial PDFs with v4

See merge request !71

Format and sort new (v4) spatial PDFs. Values have not been rounded.

New solution with expanded gridded seismicity

See merge request !70

removed custom calc-config

See merge request !69

revert stable-crust gridded b-value

See merge request !67

System readme and rupture update

See merge request !66

updated model name

See merge request !65

temp config until pgv resolved

See merge request !64

Wus system

See merge request !63

WUS system

See merge request !62

Update rate-tree.json and mfd-map.json

See merge request !61

update total rates in rate-tree.json files for new PDFs - using 10^ai from gridding provided by AL. Use declustering model-specific b-values, also from AL.

Update ceus grid pdfs - add decluster branch

See merge request !60

GMM region-specific models and flags

See merge request !59