Update to opus-HEAD-66611f1.

README.draft

 To build this source code, simply type:
 
 % make
 
 If this does not work, or if you want to change the default configuration
 (e.g., to compile for a fixed-point architecture), simply edit the options
 in the Makefile.
 
 An up-to-date implementation conforming to this standard is available in a
 Git repository at git://git.xiph.org/opus.git or on a website at:
 http://opus-codec.org/
-However, although that implementation is expected to remain conformant 
-with the standard, it is the code in this RFC that shall remain normative. 
+However, although that implementation is expected to remain conformant
+with the standard, it is the code in this RFC that shall remain normative.
 To build from the git repository instead of using this RFC, follow these
 steps:
 
-1) Clone the repository (latest implementation of this standard at the time 
+1) Clone the repository (latest implementation of this standard at the time
 of publication)
 
 % git clone git://git.opus-codec.org/opus.git
 % cd opus
 
 2) Compile
 
 % ./autogen.sh
 % ./configure
 % make
@@ skipping 17 matching lines @@
 -framesize <2.5|5|10|20|40|60> : frame size in ms; default: 20
 -max_payload <bytes> : maximum payload size in bytes, default: 1024
 -complexity <comp>   : complexity, 0 (lowest) ... 10 (highest); default: 10
 -inbandfec           : enable SILK inband FEC
 -forcemono           : force mono encoding, even for stereo input
 -dtx                 : enable SILK DTX
 -loss <perc>         : simulate packet loss, in percent (0-100); default: 0
 
 input and output are little endian signed 16-bit PCM files or opus bitstreams
 with simple opus_demo proprietary framing.