Add option --os-cache, which defaults to OS_CACHE variable
(by default - False). When this option is specified, manilaclient
will use auth token saved in keyring. First time when command will
be called, auth token and user password will be saved in keyring.
Using --os-reset-cache option password and auth_token stored in the
keyring can be deleted.
Implements bp cache-auth-token
Change-Id: Ia8959655528acce726baa616e66901c7a96fd35c
We should use common code where possible.
This change is intended to remove direct usage of json
module and start use jsonutils from manilaclient.openstack.common
Also added lost dependency 'iso8601', that is used by jsonutils
Partially implements: blueprint use-common-code
Change-Id: I42ea803d761b2510c959dc1578a20ff155670283
