Wikibase now uses uppercase ids.

We now force IDs to be uppercase rather than lowercase.

Change-Id: I19a33f60ea72e447f8a971279f149947d4e46bfd
Announcement: http://lists.wikimedia.org/pipermail/wikidata-tech/2013-September/000296.html
Merge "Wikibase now uses uppercase ids."
Few more things for uppercase ids

Change-Id: I9b28ee8c597836d37d6e71eb18474466b4e04033
Merge "Few more things for uppercase ids"
Allow both upper- and lowercase wikibase IDs

Change-Id: Id7c29981e8dde7c041a16b43bcc2658faf7b0c94
Random commit to see how pulling changes this.