Fixed some small errors in ghost scripts

ghost-openstack/scripts/ghost/ghost.py

@@ -37,7 +37,7 @@ def configure(subject=None):
     
     _run('sudo apt-get -y install unzip',error_message='Failed installing unzip')
     _run('sudo curl -L https://ghost.org/zip/ghost-latest.zip -o /opt/ghost.zip',error_message='Failed downloading ghost')
-    _run('sudo unzip -uo ~/ghost.zip -d /opt/ghost',error_message='Failed unzipping ghost')  
+    _run('sudo unzip -uo /opt/ghost.zip -d /opt/ghost',error_message='Failed unzipping ghost')  
     
     template = Template(ctx.get_resource(TEMPLATE_RESOURCE_NAME))