If Instaloader was called with --fast-update and encountered a post where
nothing has been downloaded because of flags that disable download of certain
types of media, the download was aborted. This behavior is now fixed.
Closes #183.
* Fix Post.owner_profile in cases where initial owner struct contains id
only
* Assert node structure is complete enough at Post creation
* Fix get_followees() call in _main()
* Prefer importing from '.' rather than '.<submodule>' in __main__
* Fix name of instaloader_unittests ('-' is illegal in module names)
* Foreport 5fe2a70374
"Fix downloading of hashtags"
* Foreport 67ac8f3397
"Enforce being logged in for getting username by id"