This is needed to fix an issue whereby sender is configured as a client
and after authenticating the receiving server the receiving server is
re-configured wrt it's EAP authentication and sender does not detect this.

This fixes an issue whereby a sender is configured to connect outbound without credentials
while the receiver (in server mode) is configured to request them. This would put the sender
in a permanent failure state, where it cannot send data to the receiver, even if the receiver
configuration was changed to not require credentials.

Use libtool rules (& fix current versioning) for library, use semver for API

Timeout time could be smaller than configured buffer, if we stop
sending packets at all in the meantime that would be a guaranteed
discontinuity.

Fixes #108

This reverts commit 30570370.

This was already fixed in 975750b8

I should've paid more attention :/

Fixes #107

Fixes #105

When starting with no peers peerlist_lock is being held for very long times when
adding peers. In fact it's not being held but being reacquired so fast that the
calling application sits waiting a long time before it's able to add a peer.

This really shouldn't have been part of the container, fixing it because
wrong values are worse and it cannot be removed without breaking ABI.

../src/udp.c:47:54: runtime error: left shift of 2209677876 by 32 places cannot be represented in type 'long long'
&& ../src/udp.c:63

Reduce default flow session timeout to 2 seconds, we auto increment it to 2 times buffer size if that's bigger

Prevents spurious NACKS when lots of reordering is happening.

Don't free static initialized logsettings on ristsender exit.
Set logsocket to -1 on initialization when not using UDP output address.