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/member/show.lua	Tue Feb 02 00:31:06 2010 +0100
     1.2 +++ b/app/main/member/show.lua	Sat Feb 20 22:10:31 2010 +0100
     1.3 @@ -23,13 +23,11 @@
     1.4          content = _"You have saved this member as contact."
     1.5        }
     1.6        ui.link{
     1.7 -        content = function()
     1.8 -          ui.image{ static = "icons/16/book_delete.png" }
     1.9 -          slot.put(encode.html(_"Remove from contacts"))
    1.10 -        end,
    1.11 +        image  = { static = "icons/16/book_delete.png" },
    1.12 +        text   = _"Remove from contacts",
    1.13          module = "contact",
    1.14          action = "remove_member",
    1.15 -        id = contact.other_member_id,
    1.16 +        id     = contact.other_member_id,
    1.17          routing = {
    1.18            default = {
    1.19              mode = "redirect",
    1.20 @@ -44,10 +42,8 @@
    1.21    else
    1.22      slot.select("actions", function()
    1.23        ui.link{
    1.24 -        content = function()
    1.25 -          ui.image{ static = "icons/16/book_add.png" }
    1.26 -          slot.put(encode.html(_"Add to my contacts"))
    1.27 -        end,
    1.28 +        image   = { static = "icons/16/book_add.png" },
    1.29 +        text    = _"Add to my contacts",
    1.30          module  = "contact",
    1.31          action  = "add_member",
    1.32          id      = member.id,