Change log

v2019.8.23

• pycodestyle now enforced, except on tests. Developers should install pycodestyle and the pre-commit hook (copy pre-commit to .git/hooks) provided in the repo to check before commits. CI now checks for code style and PRs must pass pycodestyle.

• chemsys str input now allowed in get_entries_in_chemsys (@rkingsbury)

• ComputedEntry and subclasses now support a normalize().

• Speed improvements in fragmeter using igraph. (@samblau)