commits: d275ad6df25457b53a594953f45b252d14260115

This data as json

sha	message	author_date	committer_date	raw_author	raw_committer	repo	author	committer
d275ad6df25457b53a594953f45b252d14260115	Speed up `decode_cf_datetime` (#1414) * Speed up `decode_cf_datetime` Instead of casting the input numeric dates to float, they are casted to nanoseconds as integer which makes `pd.to_timedelta()` work much faster (x100 speedup on my machine) * Moved _NS_PER_TIME_DELTA to top of module file * Added entry to `whats-new.rst`	2017-07-25T17:42:51Z	2017-07-25T17:42:51Z	3635471f9c1d642795b95b75219f5a713b279868	5f199557d0f8f69fbea5e027a407146e2669a812	13221727	102827