0.12 15may2016
* fixed typo

0.11 15may2016
* added ordinals for wind direction

0.10 31oct2015
* fix format_utc directive

0.9 14oct2015
* update readme with weewx 3.x instructions

0.8 13dec2014
* replace app_secret with app_key_secret

0.7 06dec2014
* added skip_upload option for debug and testing
* update to weewx v3

0.6 22oct2014
* added format_utc option

0.5 22oct2014
* added format option
* do not retry auth failures

0.4 14oct2014
* fixed binding option
* added unit_system option

0.3 22sep2014
* fixed bug that resulted in triple tweets

0.2 22sep2014
* ensure proper behavior when some observations do not exist
* improve formatting to stay under 140 character limit
* fixed trivial coding mistakes in the 0.1 release

0.1 21sep2014
* initial release
