Add support for new fields in network create

Also adds missing network-delete shell command. Additionally changes
the type of vlan and vlan_start to int to match the api samples.

Partially-implements blueprint better-support-for-multiple-networks

Change-Id: I233614431db4737284cceaf8e6b947f50dd84602
Edits on help strings

Improve help strings for consistency. Fix wording, typos,
capitalization and add "." as appropriate.

Change-Id: I376f6d0269aee8dd0e67ffab6386eac2139844ab
Don't log sensitive auth data

This code change redacts the password in keystone request, and
also redact the token text in keystone response. The code still
makes REST call by itelf, instead of calling keystone client.

Closes-Bug: 1327019

Change-Id: Ib9c0610c1ef351a127364478721cf961c2a30125
Enable H233

H233 (and H402) were temporarily disabled as part of the migration to
hacking 0.9. This patch fixes all H233 issues and re-enables
gating on them.

H402 has been removed in hacking
(I9426644fa708e9d5563abe04dc4ad656dbeb3656) so leave this one off as its
going away anyway.

Change-Id: Iae8f132c66c5e345dc2e9c2464f67609887c1475
Merge "Add support for new fields in network create"
Merge "Edits on help strings"
Merge "Don't log sensitive auth data"