split members list into partial
add member role method

produces 'Senator for NSW', 'MP for Sydney'
swap member table for list pattern
move to media object format for members (without tests)

also slight refactor with divisions panel styles
fix bug in 'never rebels' if statement
remove panel from members list style
unify Role helper with current terminology
Merge pull request #683 from openaustralia/members_panels

Display Members as list, not table