Add the ability to modify the UA

[Ironholds]

Enhancement idea: the ability to modify the utilised UA, to point to the actual scraper project, would be great.

[hadley]

Maybe html() should pass on ... to httr::GET()?

[Ironholds]

Makes sense to me; that'd also indirectly give access to things like timeout options. I'll write up a quick patch now.

[glfeng318]

change the global option: options()$HTTPUserAgent ?

[Ironholds]

Which is more obfuscated, not in keeping with the stylings of httr and related packages, and requires changing the global settings for that session each time.