Fixed auto width for Subscribe Button Widget

The saved value for a checkbox is "on" not TRUE
Sort language list
add Luxembourgish
add Luxembourgish to ADN languages
fixing string compare
new template ref generation
update documentation URLs
Merge pull request #590 from maxwilms/strings

GeoIP could accept broken downloads
Merge pull request #589 from podlove/add-lb-lang

Add Luxembourgish as a language option
Merge branch 'master' into release-1-11-2
update readme