Fix several login template translation issues

"permission" has no plural. Explicitly mention the thing were you don't
have access. It's not really translatable (to German at least)
otherwise. Lastly, the "home page" needs to be inside the translatable
string as it's location in the sentence doesn't have to be at the end.

Change-Id: I8e632ab511b8061c0d1a5b58245e03ce9cb87d5e
Translating entity types in network topology

Change-Id: I8e52a15fe606562b7336fefd8c96a38a560a759a
Partial-bug: #1226159
Fix a issue on retrieving default quota in Create Project

quota names for security group are different between nova and neutron,
so the same appoach can be used for floating IP. This commit reverts
the change in get_default_quota_data in commit c44552fe66 and changes
get_disabled_quotas to determine security group and rules quotas come
from nova or neutron.

Change-Id: I9e39ac99f1e8c7ccdce64b2e2ab79615cac50892
Closes-Bug: #1235053
Show an error message on instance launch error

Since instance creation happens asynchronously, all that currently
happens on the Horizon side is the state changes from Creating to Error.

This change checks the instance state during the Ajax request on the
backend and returns an Ajax error message popup if the status is
'ERROR'.

Change-Id: I259e27b7b6c73a38098514a701c235feb81af143
Closes-bug: 1236168.
Merge "Fix several login template translation issues"
Merge "Translating entity types in network topology"
Merge "Fix a issue on retrieving default quota in Create Project"
Merge "Show an error message on instance launch error"