BUG: bug in non-evently divisible offsets when resampling (e.g. '7s') (GH8371)
Fix VECTOR_TYPES and NA_TYPES dicts used for pd DataFrame <-> R data.frame conversion

added commas to dict

string_ not string

changed parse_version to LooseVersion

Updated release notes
Merge pull request #8497 from jbradish/master
ENH: Move any/all to NDFrame, support additional arguments for Series. GH8302