ENH: Optimisation of regrid.
Review actions
Update miniconda install
FF loader table count.
Merge pull request #1431 from cpelley/optim_regrid

ENH: Optimisation of regrid.
ENH: Cached cropped_bounds within regrid
Review changes
Merge pull request #1432 from cpelley/optim_regrid2

ENH: Cached cropped_bounds within regrid
Update travis to latest test-data sha.
Back-port dec_subset.pp test data move.
Merge pull request #1455 from bjlittle/ff-table-count

FF loader table count.
PP save pseudo-level to lbuser5.
Merge pull request #1457 from bjlittle/pp-pseudo-level

PP save pseudo-level to lbuser5.
Merge remote branch 'upstream/v1.7.x' into merge-v1.7.x
Merge pull request #1460 from bjlittle/merge-v1.7.x

Merge v1.7.x