Merge pull request #1 from matth/master

Update Vagrantfile to install correctly
fix naming
fix naming: differ window_size and block_size
fix offset calculation, 50% overlapped not 75%
Update README.md
Update README.md
add music metadata reader
add Taglib install procedure
Update README.md
read all mp3s in dir
Update README.md
add cfa result
fix spaces, add parse_mp3.rb