Working version of LCDThrottle

…ng press of Select

…uh).

…fic.

…iThrottle.

NOTE: Compiles, but may not execute. Not tested.

NOTE: Turnout control does not yet work right, in that
the throttle doesn't show the turnouts.  Still debugging that.
Also, having a static table of turnout addresses compiled into
the code seems a bit of a hack.

Cleaned up some comments etc. as well.

Switched to DHCP-assigned address.

…ed())

and while(client.available()) conditions in the input loop in SerialCommand

This helps with when to send the welcome message and keeps things a bit more
clean.  Should have no effect on normal Ethernet connections.  If it does
have an adverse effect, we can always put the variant while() constructs
inside a compiler directive.

2) Fixed the Track Power control

3) Fixed the direction control on the throttle.

Also removed the line from printIntroMessage() that was a compile-time error.

…throttle

2) Added support for Bonjour/Zeroconf registration.  Disabled in Config.h

WARNING: If using the EthernetBonjour library (which this does), you MUST
make the changes to the Ethernet library as outlined in this Arduino forum
thread: http://forum.arduino.cc/index.php?topic=234340.0

ALSO, you must change line 148 of EthernetBonjour.cpp to call
this->beginMulti() instead of this->beginMulticast() ... apparently
a typo still in the library.

FINALLY, you might want to change #define HAS_NAME_BROWSING in
EthernetBonjour.cpp to 0, to save some space, since we are registering
a service, not browsing for one.  I have not (yet) tested that though.

Indicates to JMRI that current feedback is not supported.
Suppresses the 308 error that occurs when using DCC++ with a
motor shield that doesn't support feedback.