Contain vote summary in %figure, legend caption below

Moved the instructions/legend for the table to the foot, semantically grouping it with a figcaption.
Replace rebel table with full voters table on division#show display=nil
Remove the party summary table from division#show

The information this showed will be shortly merged back into the full voter table.
Organise full voter table by party, with tallies.
remove non-data-link table stripes
Add TODO about showing parties with absent voters only
add basic accordion function to vote view

This will need to be implement with progressive enhancement and propper aria attributes added for accessibility.
Remove "(front bench)" indication from voter list
redirect "allvotes" and "allpossible" displays in division#show to display:nil
remove 'All voters' & 'All eligible Voters' nav links
cleanout calls to unused partials in division#show
Simplify voters table heading

Signed-off-by: Luke Bacon <luke@equivalentideas.com>
cleanout sort links from voters table
wrap voter table in <figure>
add an expanation caption to the voter table

This is an adapted version of the party summary table version.
colour rebel votes red
Colour the legend info on rebel voters, with TODO
Only show rebel voter legend if there are rebels

In the division voters table
Merge pull request #353 from openaustralia/consolidate_vote_list

Consolidate vote list