Update. Error free. Working on building client communication and node
authentication libraries.
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Cleaned up some variable names.
Successfully placed node authentication and client-server communication into twolibraries that can be utilized by node-devices.
Removed door.ino.
Condensed the authenticateNode and clientCommunication libraries into one TCPSocket library.
Added sketche to test WIEGAND door reader. Altered clientDefTest (non-crucial, obsolete).
Placed MAC definition at node level.
Fixed bug in TCPSocket where it would not try a second time to establish a client connection using the ORIG_INIT key.
Currently compiles - but running out of memory if sendData is called (I believe).`
Removed duplication of "key" in method setupClient().

Backing up before attempting to change communication protocol identifiers to 1 character identifiers.
Memory issue (temporarily?) solved for TCPSocket. Able to send messages to web-server.