Update storage and computation models

dataproc/api/models/computationhost_model.py

-from neomodel import StructuredNode, StringProperty, IntegerProperty,UniqueIdProperty, RelationshipTo
+# Import libraries
+from neomodel import StructuredNode, StringProperty, IntegerProperty, UniqueIdProperty, RelationshipTo
 from uuid import uuid4
 
 class ComputationHost(StructuredNode):
 	ip=StringProperty()
 	uuid=StringProperty(unique_index=True, default=uuid4)
-	hostname=StringProperty()
+	hostName=StringProperty()
 	friendlyName=StringProperty()
-	workingdirectory=StringProperty()
+	workingDirectory=StringProperty()
 
 	@property
 	def serialize(self):
@@ -16,7 +17,7 @@ class ComputationHost(StructuredNode):
 		"""
 		
 		return {
-			'node_properties': {
+			'computationhost_node_properties': {
 				'ip': self.ip,
 				'uuid': self.uuid,
 				'hostName': self.hostName,

dataproc/api/models/storagehost_model.py

-from neomodel import StructuredNode, StringProperty, IntegerProperty,UniqueIdProperty, RelationshipTo
+from neomodel import StructuredNode, StringProperty, IntegerProperty, UniqueIdProperty, RelationshipTo
 from uuid import uuid4
 
 class StorageHost(StructuredNode):