run all SSPs baseline version

Update pdt-cap for LED SSP1

Update load-factor-ldv for SSP differtiation

Update pdt-elasticity for SSP 4

fix the SSP3 value for R12_RCPA

TEMPORARY Run SSP3 only

Update pdt-elasticity for SSP 3

correction for pdt-elasticity SSP2

Update transport to run SSP 2 only

Update pdt-elasticity for SSP2

Revert Speeds back to SSP1

correct LED SSP1 speeds

LED SSP 1 speeds

Experimental: AIR speed mode in certain regions in SSP 1

Revert back last changes (blank, WEU) to R12_NAM swc

Experimental swc for R12_NAM blank

Experimental pdt-elasticity values for SSP1 GN (except NAM)

Update speed for SSP1 RAIL

Experimental swc for R12_NAM

Update pdt-elasticity values for SSP 1

Experimental swc for R12_NAM

remove R12_NAM share weight convergence

REVERT SSP 1 speeds

TEMPORARY Run SSP 1 only

Update pdt-elasticity values for SSP 1 & SSP 2

Speed setting for LED SSP 1

Update material reporting command

Adjust for ixmp/message_ix 3.7.0; Python 3.9

Add get_version(with_dev=...) argument

Ensure "c::transport+base" items are str