Apparition4 isn't really maintained anymore and there are no new releases
and it always logs a lot of errors, making the output hard to read.
So lets switch to cuprite, as it also supports everything we need and is
still maintained.
Supersedes #8330
Removed add option button
poll option can be added dynamically & last option removed if empty upon submission
Poll answer can be added dynamically by losing focus
poll option can be added dynamically & last option removed if empty upon submission
refractored to avoid repetition of publisher:sync event
poll option can be added dynamically & last option removed if empty upon submission
Added a missing semicolon
