Latest ASE breaks Amp.load

[andrew_peterson]

A recent ASE change to how label works broke Amp.load. In short, the old version of ase.calculators.calculator.Calculator always called set_label during __init__, and we had added some functions to set the logger’s label within set_label. The new version no longer calls set_label but instead uses a setter/getter approach.

The question is how we update this; do we just make Amp work with the latest version of ASE (easiest), keep some backwards compatibility (possibly messy), or alert ASE that this broke our code (not clear if that’s needed).

[andrew_peterson]

Fix for ASE new label approach.

Hopefully fixes issue #230.

→ <<cset aa1e60865684>>