Dtas 0.9.0 - duct tape audio suite for *nix

Free Software command-line tools for audio playback, mastering, and
whatever else related to audio. dtas follows the worse-is-better
philosophy and acts as duct tape to combine existing command-line tools
for flexibility and ease-of-development. dtas is currently implemented
in Ruby (and some embedded shell), but may use other languages in the
future.

Changes:

dtas 0.9.0 - minor features and speedups

The major new feature is ‘>’ and ‘<’ keys are now supported
in the dtas-console interface for dtas-player.
dtas-tl cat" also received a minor speedup for big tracklists
via syscall reductions

shortlog of changes since 0.8.0:

     process: update comment for bug workaround
     process: update comment for bug workaround #2
     compat_onenine: simplify pipe wrapper
     tracklist: favor &:sym_to_proc style
     dtas-console: '>' and '<' keys for tracklist next/prev
     dtas-tl: halve write() syscalls when emitting tracklists
     reduce syscalls in recvmsg invocations
     doc: flesh out "tl" subcommand docs

The best is yet to come!