Add ability to global tags that get sent with each request

[bisrael]

Title should be succinct enough. 😄

[mattrobenolt]

Thanks. This is on my TODO list, but an issue to track it is better. :) This is something that I've overlooked. I'll get it buttoned up for 1.1.

[bisrael]

is it possible to do this through globalOptions?
it wasnt clear when reading through the source (yes i read your source 😈 )

[cheeaun]

I think this is missing from the docs.