Update OPC.pde's in Processing examples to use background socket management

Update all Processing sketches to use the OPC.pde version from
grid24x8z_clouds that uses background/async socket management, and
doesn't grid to a halt every time the server drops out

Creating colors with all blue components possible

made python3 compatible with if/then branch

Makefile modifications to cross-compile for OpenWRT on OSX

tested on OSX only, needs testing on Windows and Linux

Add a Java interface to the Fadecandy code examples

ODROID link was causing Chrome to download a .php file

Go example

Tweaked frame counting

Prevent frame counting if dataFeedbackPin is stuck low.

that repeats a sequence over an LED string.

Processing: OPC (re)connection in separate thread

When using multiple OPC connections, prevents disconnected server(s)
from stalling the client.

Update reserved bits line in fc_protocol_opc.md. Thanks DJ!

Correct reserved bits line now that bits 2 & 3 are specified.

add HTML example for lighting up LED strip with mouse and chosen colours

Raspberry Pi fcserver-1.04, now functional

Update opc.py

struct import missing