FishLight_PCB: Removed flyback diodes

I forgot to remove these before so I am removing them now.
FishLight_PCB: Remove the RTC

The RTC isn't really needed because the Spark Core can get the time
directly from the internet and it has an onboard RTC that can be used
instead.  The only downside is that it doesn't have a battery but it can
just sync with the internet at startup.  It also has EEPROM like memory
that can be accessed to store data as needed, just like an RTC would
have.
FishLight_PCB: Changed 12V connectors

The old connectors were 2.54mm.  Changed to 3.5mm because they are
bigger, easier to use, and not as ugly either.  Also moved some
things around in order to get them to fit.
FishLight_PCB: Did a lot of routing

Routed a bunch of signals.  Got the entire lower half of the board done,
now pretty much just need to do the 12V and AC devices and it is done.
FishLight_PCB: Start moving the MUX signals around

The signals to the MUXes were all crisscrossed and would be nearly
impossible to route.  I got the LE signals all untangled and started in
on the D signals.
FishLight_PCB: Lots and lots of routing

Most of the routing is done now.  Got the MUX signals mostly figured out
but there are still a few that are going to be very tough, like the AC
devices and the fans.  The AC devices still need to be hooked to their
terminals too and this worries me because there isn't much space to
isolate the lines.  I guess the good news is that if it shorts that just
means it gets connected and it wont be controllable from the Spark.  But
this isn't a good thing either.
FishLight_PCB: Finished routing

Finished routing the board!  Now just to do some cleanup and maybe add
some pull up resistors to the ends of the I2C strings.  They are pretty
long and could have difficulty driving to the ends.