replace --syn-list with --cmd-dump
add external syn-list.php utility
synopsis should always be a string
it's actually easier if we pass the whole 'wp' command
move read_json() to separate file
add cmd-list.php utility
convert all top-level command descriptions to the imperative mood
add 'internal' key and put it to use
remove intermediate value in cmd_dump()
move non-wp-related code out of after_wp_load()
use --cmd-dump in compare-cmd
remove site-related utilities (moved to site repo)
run --cmd-dump without needing WP files
Merge pull request #269 from wp-cli/cmd-dump

Add --cmd-dump flag