Disabled speex codec

Ignore-this: c4b71785c4396ad2988b7184a70c47b0

darcs-hash:20140416112052-b22ec-0994de6388a4a412fcc04ae65990e094526e32c0
Ordered codecs by category

Ignore-this: c8824341e6a45e7fe2d3bb6c18064c40

darcs-hash:20140416112547-b22ec-0f8f5492af9a46e2be1d3ff49b068a1e07c60b45
Fixed variable and method names

Ignore-this: c4b6b22fbded1e18d723feb6e1d9362a

darcs-hash:20140416125734-b22ec-064836a8bf3b3257eee12e750c130330ed3281cf