Ensure Matching Client and Server Versions for 100% Comptibility

Due to the many new features available in the c-treeACE database core technology it has been necessary to ensure only c-treeACE version 9 clients connect to the c-treeACE database engine for maximum compatibility. To enforce this new restriction, a connection handshake has been introduced. Prior versions of c-tree clients connecting to a new c-treeACE database engine will now receive error LMTC_ERR (530, client does not match server).