Import notifications should differentiate between user, soyuz and bazaar imports

[Данило Шеган]

Previously, import notifications were sent only to those doing manual uploads through web UI, and to rosetta admins (for all soyuz stuff). Recently, we've changed this so soyuz translation import notifications actually go to package uploaders, and we also introduced imports from bazaar branches.

Yet, we haven't modified our import notification emails. We might need to introduce a 'upload_source' field to TranslationImportQueueEntry, and modify notifications based on that.

The confusing notifications people will get when their templates are imported through soyuz and/or bazaar are along the lines of:

> Hello Blah Blah,
>
> On 2009-04-06 21:30+0000 (6 minutes ago), you uploaded a translation
> template for Foo in Foo trunk in Launchpad.
>
> The template has now been imported successfully.
>
> Thank you,
>
> The Launchpad team

Also note that at least for some cases (i.e. Ubuntu + Soyuz) we plan to disable success notifications as discussed in bug #353648.

[Данило Шеган (danilo)]

Related bugs: bug #418177, bug #616587, bug #588292, bug #594220.

[Robert Collins (lifeless)]

Relatedly branch imports no longer send mail due to it being considered spam.