Add attributes schema to OS::Neutron::FloatingIP

FloatingIP now validates attributes against a schema instead of
accepting all possible inputs and filtering on the result returned by
neutron.

Change-Id: I3bf1c3728a9d6faab71c2312f331d73b1460c013
Closes-Bug: #1240893
Replace try...except block with assertRaises

So the test logic looks tidy and clean.

Change-Id: I8415fbe1d4c0ce59c5c9f173240fcd6eb15b0c63
Remove oslo uuidutils.generate_uuid from heat code

`uuidutils.generate_uuid' is going to be removed from oslo, so we need
to remove the call from heat code.

Change-Id: Iba9f86d8b8ec5ebaf4e80e6b729e372816bd5723
Partial-Bug: #1253497
Imported Translations from Transifex

Change-Id: Ic850cf5bc9e4a59ec6fa1c8d1c7a2e57152b174e
Merge "Add attributes schema to OS::Neutron::FloatingIP"
Merge "Remove oslo uuidutils.generate_uuid from heat code"
Merge "Replace try...except block with assertRaises"
Merge "Imported Translations from Transifex"