Switch news items to a common tense (present perfect)

The current home page looks inconsistent because of the different tenses
used, so a common tense is desirable.

One can argue which tense to use, and news reporting often uses the
present for special effect, but that seems out-of-place here.

Since news items are about things which just happened, the present perfect ("we have (just) moved") is probably more appropriate than the simple past ("we moved"), since the action:

* just happened
* has (probably) direct consequences in the present (as opposed to "Napoleon died").

(Should anybody have questions on the rules: The first reference I found on the "English tenses" topic is http://www.ego4u.com/en/cram-up/grammar/tenses, which seems correct).

I couldn't find an existing standard in the past webpage (http://www.uni-marburg.de/fb12/ps/).