Merge branch 'develop' of github:iotaledger/iota.lib.py into develop

Author: todofixthis

iota/transaction/creation.py

@@ -20,6 +20,7 @@
 __all__ = [
   'ProposedBundle',
   'ProposedTransaction',
+  'Transfer',
 ]
 
 
@@ -83,6 +84,13 @@ def as_tryte_string(self):
     return super(ProposedTransaction, self).as_tryte_string()
 
 
+Transfer = ProposedTransaction
+"""
+Follow naming convention of other libs.
+https://github.com/iotaledger/iota.lib.py/issues/72
+"""
+
+
 class ProposedBundle(Bundle, Sequence[ProposedTransaction]):
   """
   A collection of proposed transactions, to be treated as an atomic