Allow a user to pass in an existing session token rather than username/password

[mraineri]

Some environments set up sessions that are shared on the console. I have some users asking to be able to plumb those into Tacklebox scripts.

[brandonbiggs]

I took a stab at this on just one script #182. Didn't want to change a bunch if that's not what you were thinking. Let me know if this is/isn't what you were thinking.

[mraineri]

I took a stab at this on just one script #182. Didn't want to change a bunch if that's not what you were thinking. Let me know if this is/isn't what you were thinking.

It's very close actually! My only suggestion is to see if we can use misc.py to contain a lot of this common logic to avoid having to copy/paste these changes everywhere (or other types of common updates like this in the future).

[brandonbiggs]

I was going to ask about a common args file. I didn't see that you already had something in misc.py. Sweet! I'll look at that.