Introduce MX records

[ejhernandez@…]

We are going to use another submodel from domains with name 'mail exchangers' which manage the MX domains and the preference value which acts a weight.

Expose the required methods in main module to script DNS module easily.

[ejhernandez@…]

(In [10286]) Branching from ubuntu-0.11.99 branch DNS module from [10285] and starting changes refs #1005

[ejhernandez@…]

(In [10287]) Fixing some bugs, setting the version to 0.12 and change to HostIP and DomainName? types refs #1005

[ejhernandez@…]

(In [10290]) Evil hack to have the directory setted in the hostname submodel refs #1005

[ejhernandez@…]

(In [10299]) Moved t1005 branch to 1005-dns since now it includes ebox, libebox as well as dns module refs #1005

[ejhernandez@…]

(In [10300]) Added libebox to the branch from ubuntu-0.11.99 branch refs #1005

[ejhernandez@…]

(In [10301]) Pass to foreignModel method in Select the type. Set the model in fieldDescription to allow type has the model which owns to in the addition as well refs #1005

[ejhernandez@…]

(In [10303]) Make union unique if all subtypes are set as unique refs #1005

[ejhernandez@…]

(In [10304]) Fixing minor bug in select template refs #1005

[ejhernandez@…]

(In [10306]) Adding _setValue to Select to make foreign model work nicer with exposed methods and fixing bugs on exposedAPI machinery refs #1005

[ejhernandez@…]

(In [10307]) * Added three methods to the exposed DNS API to handle MX records

• Make some methods private since they were only accesible from the same class
• Dump the MX records on the stub file

closes #1005 (spent 10.25)

[ejhernandez@…]

(In [10311]) Fixing doc in domains method refs #1005

[ejhernandez@…]

(In [10319]) Merging branch t1005-dns to trunk since it is now closed refs #1005

[ejhernandez@…]

(In [10320]) Update Changelog from the merge branch refs #1005