Fix status codes in node controller

New WSME 0.5b6 allows to specify custom error code
for ClientSideError instead of default 400.
TODO removed from patch method because WSME 0.5b6
do correct handling Client/Server side errors for
user specific exceptions with 'code' attribute.
(WSME change I2663db0aa88538b722eb2783d130585b0fc2335b)

Change-Id: I5e44f7cc9490331d9f35f209ffe76cb0be6f4a20
Fix a few missing i18n

Change-Id: I44612bbb92655c653766f8227571cbd99aa370ad
Group and unify ipmi configurations

This patch will simplify/unify the ipmi configurations of both ipmi
drivers. Both will share the same 'ipmi' group of configurations just
like the share the same ipmi_ namespace for driver_info.

Also, configurations that weren't being used anywhere were removed from
the code, they can be reintroduced once the functionally gets implemented.

Change-Id: I5f068fe0598fb41dde20f981bc07d8982a6c66ab
Merge "Fix a few missing i18n"
Regenerate the sample config file

Regenerate the sample config file

Change-Id: I89da43470a349ccc632a179a826127f7b9456e7e
Merge "Fix status codes in node controller"
Merge "Group and unify ipmi configurations"
Merge "Regenerate the sample config file"