fix some things people wanted to be cleaner. rename --map-file to --style. no more -t alias for --template. update docs. rename template entry in map files to changelog. if --verbose, use changelog_verbose if there, else changelog.

port:4:export
port:4:vaportight
port:4:import/export
FIXME: history is wrong here
port:1:1:-:eggs:import
port:1:2:+:eggs:vaportight
port:1:3:+:eggs:import/export
port:0:2:+:spam:export
port:0:1:+:spam:import
port:4:import/export