Version beta7

Important security fixes:
- Added missing HTML encoding to postal address of member
- Link to discussion URL only if it starts with http(s)://

Other bugfixes:
- Fixed wrong display of 2nd level delegating voters for an initiative
- Do not display invited initiators as initiators while voting
- Added missing translation

New features:
- Public message of the day
- Both direct and indirect supporter count is shown in tab heads
- Support shown in initiative lists

Language chooser at the login page has been added (again)

     1.1 --- a/app/main/member/_show.lua	Sun Jan 10 12:00:00 2010 +0100
     1.2 +++ b/app/main/member/_show.lua	Fri Jan 22 12:00:00 2010 +0100
     1.3 @@ -73,7 +73,7 @@
     1.4                  ui.tag{
     1.5                    tag = "span",
     1.6                    content = function()
     1.7 -                    slot.put(encode.html_newlines(member.address))
     1.8 +                    slot.put(encode.html_newlines(html.encode(member.address)))
     1.9                    end
    1.10                  }
    1.11                end