Switch some functionality to new pytools logging infrastructure

See merge request inducer/meshmode!29

Simple refiner and conformality tracking

See merge request !28

Raise an error when non-CL-array passed to discr conn (Closes #8 on gitlab)

Closes #8

See merge request !27

affine_map einsum compatibility

See merge request inducer/meshmode!26

Silence loopy language version warnings

See merge request !25

einsum changed arrays from C_CONTIGUOUS to F_CONTINGUOUS, which got sent
to map_mesh above and reshaped into an array that wasn't C or F
contiguous.

Ensure nodes are C-contig in merge_disjoint_meshes even with numpy 1.14

See merge request !24

# Conflicts:
#   .gitlab-ci.yml

Switch spuiously (?) failing AMD CPU test to Intel

See merge request !23