Fixes for spaces in jail names

My jails tab is empty and if i try to change jail location of open the plugin page i get the following error:

cannot open 'Server': dataset does not exist

more info...

Error: Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/iocage_lib/zfs.py", line 20, in run
cp.check_returncode()
File "/usr/local/lib/python3.7/subprocess.py", line 444, in check_returncode
self.stderr)
subprocess.CalledProcessError: Command '['zfs', 'get', '-H', '-o', 'property,value', 'all', 'Server']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/middlewared/main.py", line 128, in call_method
result = await self.middleware.call_method(self, message)
File "/usr/local/lib/python3.7/site-packages/middlewared/main.py", line 1113, in call_method
return await self._call(message['method'], serviceobj, methodobj, params, app=app, io_thread=False)
File "/usr/local/lib/python3.7/site-packages/middlewared/main.py", line 1075, in _call
return await run_method(methodobj, *args)
File "/usr/local/lib/python3.7/site-packages/middlewared/main.py", line 999, in _run_in_conn_threadpool
return await self.run_in_executor(self.__ws_threadpool, method, *args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/middlewared/main.py", line 987, in run_in_executor
return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/local/lib/python3.7/site-packages/middlewared/schema.py", line 953, in nf
return f(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/middlewared/plugins/jail.py", line 179, in query
resource_list = iocage.list('all', plugin=True, plugin_data=True)
File "/usr/local/lib/python3.7/site-packages/iocage_lib/iocage.py", line 1323, in list
**kwargs
File "/usr/local/lib/python3.7/site-packages/iocage_lib/ioc_list.py", line 84, in list_datasets
_all = self.list_all(ds)
File "/usr/local/lib/python3.7/site-packages/iocage_lib/ioc_list.py", line 197, in list_all
mountpoint = jail.properties['mountpoint']
File "/usr/local/lib/python3.7/site-packages/iocage_lib/resource.py", line 23, in properties
self.resource_name, self.zfs_resource
File "/usr/local/lib/python3.7/site-packages/iocage_lib/zfs.py", line 54, in properties
resource_type, 'get', '-H', '-o', 'property,value', 'all', dataset
File "/usr/local/lib/python3.7/site-packages/iocage_lib/zfs.py", line 22, in run
raise ZFSException(cp.returncode, cp.stderr)
iocage_lib.zfs.ZFSException: cannot open 'Server': dataset does not exist