BUG: Fix typo in refine refactor that regressed subpx accuracy.
TST: Minor: adjusted test related to no-feature warnings.
BLD: Update conda and specify versions of packages.
Merge pull request #77 from danielballan/refine-bug

BUG: Fix typo in refine refactor that regressed subpx accuracy.
DOC/BLD: Need yaml for logging, but not yaml_serialize. Doc versions of deps.
Merge pull request #79 from danielballan/update-deps

DOC/BLD: Need yaml for logging, but not yaml_serialize. Also, specify dep versions in README.