This means that for apps like 'pos' no longer link against libSSL
The streams no longer zero-after-free, there are no secrets transported
in datastreams so this is useless and avoids linking in one OpenSSL
call.
The insecure_rand() method depended on the openssl code to seed it with
randomness. Now replaced with a proven current-time-milliseconds.
This is enough in those cases because it was always meant to be an
insecure random.
The 'server' library has always been a catch-all and
ideally only the hub links it in (far future goal).
In line with this I move a list of files out of server
into the utils lib.
I choose 'utils' because all these are plain old data
objects that many crypto apps will find useful.
now in utils/primitives/
* CScript
* CPubKey
* CTransaction
* CBlock
* FastTransaction
* FastBlock
* CScript
streams.h is now in utils/streaming/
hash.h is now in utils/
Remove no longer useful options;
* chain (sorry, supporting the btc chain just doesn't seem worth it)
* initiatecashconnections, we only allow Cash connections now.
* flexiblehandshake, same for incoming. Reject non-cash ones.