Updated: [rhinstaller/anaconda/pulls/204 master] Source spoke master fix

[dashea]

I want to fix source spoke which was somewhat broken and I found that this change will be somewhat bigger than I expected :).

So in short:
* Change hashing of repositories to special IDs (they are attached to existing RepoData instances)
* Checks can now test even not selected objects
* Check repositories URL before leaving spoke
* Some minor fixes

*This is some kind of RFE so please feel free to tell me if there is better solution*

[rhinstaller/anaconda/pulls/204 master] Source spoke master fix

[dashea]

I fixed pylint errors

[rhinstaller/anaconda/pulls/204 master] Source spoke master fix

[dashea]

> @@ -403,6 +405,14 @@ def apply(self):
>                  checkmount=False)
>          self.clear_info()
> def _repo_id_generator(self):
>    """ Repository id numbers generator
>    """
>    repo_id = 0
>    while(True):
>        yield repo_id
>        repo_id += 1

This should be a more generic thing not taking ``self`` and defined as ``iutil.id_generator``.