Pootle export

Hi Daniel,

I've added some very minor additions to this, most of them are on Pootle as well apart from:
- there is a key in so-hook that I'm not able to translate with Pootle - trying to access key number 5 just results in an "empty" page (see http://translate.liferay.com/pootle/de/so-hook/Language_de.properties/translate/?unit=789167)
- mb-subscription-manager-portlet is not related to SO and not on Pootle but since it only has 2 keys I figured it would be okay to include it in the pull

If there's anything I can be of help with, just let me know.

Thanks already,
Daniel