Bug 987064 - Remove AudioChannelType. r=roc, r=mchen, r=bent
Bug 993303 - Correct the VorbisTrackEncoder::WriteLacing function. r=rillian
Bug 994834 - Remove app package on uninstall. r=felipe
Bug 995543 - Unbreak libc++ build after bug 982490 by using more portable mozilla::Abs. r=jesup