Dynamic interface using XMLHttpRequests, and many other changes

Bugfixes:
- Only allow voting on admitted initiatives
- Repaired issue search
- Don't display delegations for closed issues on member page
- Don't show revoke link in initiative, when issue is already half_frozen
- Localization for voting JavaScript
- Display author of suggestions

Disclosure of voting data after voting is finished:
- Possibility to inspect every ballot including preferences
- Show number of voters preferring one initiative to another initiative

Interface behaviour changes:
- Reversed default order of drafts
- Default order of suggestions changed
- Show new drafts of initiatives only once per day in timeline

Accessibility:
- Barrier-free voting implemented
- POST links are now accessible without JavaScript
- Changed gray for unsatisfied supporters in bar graph to a lighter gray

Other interface improvements:
- Optical enhancements
- Dynamic interface using XMLHttpRequests
- Show usage terms in about section
- Show own membership in area listing
- Show uninformed supporters greyed out and marked with yellow question mark
- Warning box in non-admitted initiatives
- When voted, don't display voting notice and change label of voting link
- Show object counts in more tabulator heads
- Enlarged member statement input field

Miscellaneous:
- Code cleanup
- Added README file containing installation instructions
- Use new WebMCP function ui.filters{...} instead of own ui.filter and ui.order functions

     1.1 --- a/app/main/index/about.lua	Tue Feb 02 00:31:06 2010 +0100
     1.2 +++ b/app/main/index/about.lua	Sat Feb 20 22:10:31 2010 +0100
     1.3 @@ -1,5 +1,18 @@
     1.4  slot.put_into("title", encode.html(_"About LiquidFeedback"))
     1.5  
     1.6 +if app.session.member_id then
     1.7 +  slot.select("actions", function()
     1.8 +    ui.link{
     1.9 +      module = "index",
    1.10 +      view = "usage_terms",
    1.11 +      content = function()
    1.12 +        ui.image{ static = "icons/16/script.png" }
    1.13 +        slot.put(_"Terms of use")
    1.14 +      end
    1.15 +    }
    1.16 +  end)
    1.17 +end
    1.18 +
    1.19  
    1.20  slot.put("<br />")
    1.21  ui.field.text{ attr = { style = "font-weight: bold;" }, value = "Diensteanbieter:" }