new dtas release coming soon

[Eric Wong]

Mostly minor bugfixes to dtas-player.  I'll see if I get better
editing support in releasable shape, too.

In related news, Ruby 2.2.0-preview1 is out with some memory reductions,
and automatic vfork support on Linux, which makes it cheaper for us
to run sox(1) processes and such.

[1] http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/65103