Address EAC import/export issues with name fields

Squashed commit of the following:

commit a430d16730d96353502426fe6d9fb17215312511
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 21:54:53 2013 +0100

    Change EAC parallel form of name xml import, fixes #3792.

    Import differents cultures for the same parallel form from nameEntry tag with xml:lang attribute.

commit b9520805fe1fd942ea075c5619f9e4976f1c922f
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 19:43:01 2013 +0100

    Change XPath query for others forms of name import

commit a4345c3d5ca8836f6c1a5563c7c4960aad406469
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 19:38:04 2013 +0100

    Add standardized form of name import, fixes #3792

commit f7b4ef5f86a0753c880a1fb52b079119e945ab45
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 19:10:38 2013 +0100

    Change language to iso 693-2 format in xml:lang attribute

commit 8add3ced897e66f7bda6be0865b2898ce336e06e
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 05:31:11 2013 +0100

    Change parallel form of names export in EAC nameEntryParallel.

    Add nameEntry for all translations, and nameEntry with preferredForm
    for the name with the same culture than the user.

commit e05728dbb20983495ee7bd652f1709103dd9ef47
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Tue Mar 19 03:57:27 2013 +0100

    Add standardized form of name in EAC export