The default build type is now "Release"
Bugfix in EchoLink code

SvxLink would crash upon trying to establish an EchoLink connection if
it was built using CMake and Speex was installed.
Improved EchoLink RX timeout handling

The previous EchoLink RX timeout handling was a little bit too
simplistic. It could not handle clients sending larger audio packets,
like iPhones seem to do. The new algorithm adapts the timeout value to
how much audio data have been received.
Updated ChangeLog and version for the EchoLink RX timeout fix
Merge branch 'master' into rtl