Log Message:
rubberband: Update to 1.9.0

Changes in Rubber Band v1.9

 * Fix incorrect numbering of pitch speed/quality flags in the
   auxiliary C wrapper header. The effect of this was that code using
   the C wrapper that intended to select the higher-quality
   pitch-shift mode was actually choosing the higher-speed mode, and
   vice versa. (The third mode - high-consistency, commonly used in
   real-time applications - was correct.) Thanks to Michael Bradshaw
   for reporting this.
 * Add a .NET interface, generously contributed by Jonathan Gilbert
   under a BSD-like licence
 * Improve error handling in command-line utility
 * Fix failure to build with FFTW_SINGLE_ONLY defined
 * Fix some compiler warnings
 * Install the JNI target (with make install) only if it has actually
   been built, avoiding an error otherwise

The API is unchanged except for the fix noted above, as a result of
which the minor version number has been increased. The library is
binary compatible with version 1.7.