Various minor UI changes for wallet_journal_aggregate
Change views.wallet_journal_aggregate to pre-format date values instead of doing bad things in the template
Add models.CorpWallet.__html__ and change __unicode__ to be less awful
Various wallet_journal_aggregate changes: clean up group by, add group by day, add group by source.
Add support for filtering on any/no corporation to views.wallet_journal.*
Move wallet_journal_filters template snippet to templates/includes/
Split common wallet_journal JS into includes/wallet_journal_js.html
Fix js.sorted_keys sorting in a bizarre fashion