Figure out import syntax

[alex]

Here are some of the proposals on the table

(they're in groups)

import twisted
from twisted import internet

import twisted
import twisted.internet
import twisted.internet.defer.{Deferred, succeed}

import Deferred, succed from twisted.internet.defer

from twisted.internet.defer:
    import Deferred, succeed

from twisted:
    from internet:
        from defer:
            import succeed
        import reactor

import twisted.internet:
    reactor
    defer

from twisted.internet.defer:
    import succeed
    import failure
    import returnValue
    import inlineCallbacks
    import gatherResults

[alex]

Going to go with:

import twisted
import twisted.internet
import twisted.internet.defer.{Deferred, succeed}

for now, can reconsider once we're better positioned to do science