Add perian
Use latest soundcleod

Use latest version of SoundCleod.app. #2448 #2452
Merge pull request #2458 from jonotrujillo/latest-soundcleod

Use latest soundcleod
Merge pull request #2459 from rolandwalker/cask_only_artifact

Add artifact caskroom_only
Merge pull request #2457 from jimbojsb/perian

Add perian
add perian caveats indicating project status
Merge pull request #2456 from rolandwalker/instance_methods_in_blocks

Allow cask instance methods within blocks
Merge pull request #2445 from rolandwalker/uninstall_messages

add missing user feedback during pkg uninstall
Merge pull request #2433 from rolandwalker/usage_doc_cleanup

Overhaul USAGE.md
Merge pull request #2390 from rolandwalker/hacking_doc

Spin out HACKING.md from CONTRIBUTING.md
Merge pull request #2417 from rolandwalker/devel_scripts

Add developer scripts
Merge pull request #2444 from rolandwalker/project_stats_script

Add project_stats script
standardize project name: homebrew-cask

- make lower-case and remove backticks for project name
  (backticks kept for commands/filenames/etc)