Devel is broken, we cannot release

[Ian Booth]

> 
> * FAIL: managedstorage_test trusty ppc64
>   from 2014-06-30 which had a secondary bug that broke compilation.
>   https://bugs.launchpad.net/juju-core/+bug/1336089
> 

This bug brings up another issue.
The code concerned has now been moved off to a juju sub project - blobstorage.
So the juju-core ppc64 tests will no longer fail.

Martin is in the process of setting up Jenkins landing jobs for all the sub
projects (there are several). But there won't initially be ppc64 variants of
these jobs. So it will be possible for juju-core to now pass ppc64 testing even
though sub projects it depends on may not.