Specify push/pull destinations with URL rather than flags

[stevvooe]

Instead of having to specify various options, it might be more familiar to have to tool work with urls, similar to git and other tools:

$ trousseau push s3://....
$ trousseau pull ssh://...

This is just a convenience, but might help with usability.

[oleiade]

Sounds like a great idea. Would be a great opportunity to port something like https://github.com/botify-labs/python-anywhere to golang too.

Would be interested in adding such feature to trousseau?

[stevvooe]

Thanks for implementing this. Sorry I didn't have a pull request. python-anywhere functionality looks like it would be a good addition to golang, but I'm afraid such a feature would need to be part of the standard library to achieve adoption.