Bugfixes, feature enhancements, code-cleanup, and major work on API

Details:
- API
-- Allow relation name to be passed to helper function util.autoapi{...}
-- Added area API
-- Bugfixes in API
--- Correctly return initiatives (bug #162)
--- Correctly process "id" parameter for initiative API
--- Bugfix related to "state" parameter (bug #165)
--- Changed constant "discussion" to "accepted" (in model/issue.lua, used by API)
--- Fixed JSON encoding in auto_api (bug #181)
--- Ignore list filter "voted" in case of public access
--- Enable access to API without session
- Work on RSS feed (incomplete yet)
- Other bugfixes
-- Handle empty browser identification string
-- Handle invalid date in member/update.lua (bugs #24 #109 #115 #136)
-- Better handle errors while converting uploaded images. (bug #79 +5 duplicates)
-- Don't display revoked initiatives in list of new drafts (bug #134)
-- Fixed syntax error in app/main/member/_action/update_name.lua throwing unexpected error, when new name was too short
-- Do not display refresh support button for revoked initiatives
-- Repaired issue search (bug #150)
-- Fixed typos in german translation files
--- "initi(i)erte"
--- "Er(g)eignisse" (bug #161)
- Code cleanup
-- Removed deprecated motd files locale/motd/de.txt and locale/motd/de_public.txt
-- Removed redundant code in app/main/index/_updated_drafts.lua
- New features and (optical) enhancements
-- Support change of notify email; notification of not approved address added to start page
-- Settings dialog splitted into single pages
-- Mark deactivated members
-- Calendar for birthday selection in profile
-- Policy list public readable when public access is enabled

     1.1 --- a/app/main/member/_action/update_images.lua	Wed May 26 15:47:52 2010 +0200
     1.2 +++ b/app/main/member/_action/update_images.lua	Thu Jul 08 18:44:02 2010 +0200
     1.3 @@ -23,7 +23,8 @@
     1.4        local convert_func = config.member_image_convert_func[image_type]
     1.5        local data_scaled, err, status = convert_func(data)
     1.6        if status ~= 0 or data_scaled == nil then
     1.7 -      error("error while converting image")
     1.8 +        slot.put_into("error", _"Error while converting image. Please note, that only JPG files are supported!")
     1.9 +        return false
    1.10        end
    1.11  
    1.12        if not member_image then