Update i18n translation for neutron.common/debug log msg's

Validate that hacking rules apply to directories:
    - neutron/common
    - neutron/hacking
    - neutron/debug
    - neutron/locale

Change-Id: I177f5fa5fb7cfdcf332949933aa4bd755a90bb94
Partial-bug: #1320867
Update i18n translation for neutron.notifiers log msg's

Validate that hacking rules apply to directories:
 - neutron/notifiers
 - neutron/openstack (this is already 'clean')

Change-Id: I37b8c45e20d2f59e4e9f5d80d5dc87f19a7a8b3a
Partial-bug: #1320867
Check for default sec-group made case insensitive

Currently creating another security group with name
"default" is not allowed, however we can create
another security group with name "DEFAULT"
(or any other CASE pattern).

When trying to boot a VM without specifying
a security group it should always pick the
"default" security group. However, if another
security group of the name DEFAULT is present,
the VM gets associated with the wrong
security group (i.e DEFAULT and not default).

So, updated the code so that a security group
with name DEFAULT (or any other case pattern)
is not allowed.
Closes-Bug: #1384505

Change-Id: I3bc4e48cf723bcf74e098d7ef66df0333f6a8686
Merge "Update i18n translation for neutron.common/debug log msg's"
Merge "Update i18n translation for neutron.notifiers log msg's"
Merge "Check for default sec-group made case insensitive"