Merge branch 'release/0.4' into next
remove status update form from facebook lists
allow the fb stream to use customised url

note that the formatter probably won't support extra fields in that
request
provide post modal only when posting is possible
show a twitter user's timeline on the frontpage
Merge branch 'feature/modal-possible' into next
bump version to 0.5
Merge branch 'release/0.5'