Websites fail to install on Genesis 0.7 (Vagrant)

[Bugsbane]

Using the latest vagrant box, I get this error when trying to install ownCloud:

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ERROR in utilities [/home/vagrant/kraken/kraken/utilities.py:34]:

Job 22f13ace7d4c4a9f (_post) has run into exception Exception: nginx serverblock couldn't be written - cannot concatenate 'str' and 'NoneType' objects

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ERROR in utilities [/home/vagrant/kraken/kraken/utilities.py:35]:
Stacktrace is as follows:
Traceback (most recent call last):
File "/home/vagrant/kraken/kraken/utilities.py", line 29, in run
self._func(_self._args, *_self._kwargs)
File "/home/vagrant/kraken/kraken/frameworks/sites.py", line 39, in _post
specialmsg = site.install(app, data["extra_data"], True, message)
File "/home/vagrant/core/arkos/websites.py", line 202, in install
raise Exception('nginx serverblock couldn't be written - '+str(e))
Exception: nginx serverblock couldn't be written - cannot concatenate 'str' and 'NoneType' objects

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There doesn't seem to be anything in /var/log/genesis.log

[Jacob Cook]

Note to self, see #453 (comment)

[Jacob Cook]

Should be fixed in latest push.