dev secret and account obfuscation

[RMHogervorst]

I like the authentication part (although it is quite annoying that I have to reauthenticate everytime). However now you need to type your secret and id into the R console. A better way is to put the API Authentication Keys into .Renviron (see this vignette by Hadley Wickham appendix

It might also be useful if the authentifaction part was more automatic, you have to give the token to every call. a default name and location would be better don't you think?

[tiagomendesdantas]

Thanks for sharing! It's definitely better to do it as Hadley described. I'll rewrite the package but this might take a while.