Many Changes

Added AGPS server config, network time updating, optimized string
creation, allowedWaitForIt to check for 2 keys, fixed a bug in
BufferCheck when x=~255, added getting GPS location using mode 1 or 2,
other small optimizations
MODE 3 Added

The program now has bobbing drifter functionality.  The motor control
functions are added.  It still needs the float and sink functions, and
it needs testing (probably a lot).