Bumped Debian Standards-Version

Ignore-this: 6c43996c5d025b851307dd92c6fcbc33

darcs-hash:20141121103436-56b4d-0e138f400f9eb480e71e627f825d91f7a750bea7
Removed unused code

Ignore-this: ddd1261de6dcbd4ea7440b0714b82f77

darcs-hash:20141125141545-b22ec-4f8e6c107b4499d0764b74e3184dbeb42bde8f9d
Do not reset the Echo Canceller unless the audio stream changes direction

Ignore-this: 50be3d854dd81c5fe64a335a51ff09b

darcs-hash:20141125141918-b22ec-091aacd310c2007efb0b2f4c7bcbc23bb69d762d