get_positions_options: Column state doesn't exist

[fouslim]

Hi @JestonBlu.

I got a similar error as #139 when calling get_positions_options, this time column state is missing.
The fix I found was to modify line 67 of get_positions_options.R:
options <- dplyr::inner_join(options, option_market_data, by = "option")
to
options <- dplyr::inner_join(options, option_market_data, by = c("option", "state"))

thanks

[JestonBlu]

@fouslim thanks, ill push a fix shortly. It looks like the API changed to add some additional fields that are common and are being renamed when I join. I must have missed this one or it changed again after i fixed it. Ill push a fix to github tonight and a patch to CRAN in a week or so in case there are any other issues.