M100 had numerious changes and quit working.   Part of the problem is
the overloading of the SERIAL_PROTOCOL functions.   Also, some of the
address arithmatic was changed to use char *ptr and passing ptr into the
SERIAL_PROTOCOL functions caused them to try to print a string instead
of a number.     M100 is working again.   Let's keep it that way!

M100 has been expanded to now have a function  int
free_memory_is_corrupted()  that can be called from other code to see if
the free space is still contiguous.  It may make sense to add a flag to
control its verbose nature but right now, the extra chit chat is very
helpful to know int free_memory_is_corrupted()  is doing the right thing
and what it found at various points when it was called.     A 'Show &
Tell' is coming up with int free_memory_is_corrupted().

When PARK_HEAD_ON_PAUSE is defined Marlin won't compile because of two missing semicolon.

Put TOSHIBA with other stepper driver options

wt150 (Mightyboard Rev E) & RRD Full Graphic Smart Controller

Fixed comparison of float values to NaN

The `ftostr4sign` function got munged by the `WITHIN` patch

Init bed_level_virt_interpolate on EEPROM load

Cheaptronic V2

Add support for new electronics
www.reprapobchod.cz

Additional missed patches

More patches for 5 extruders

Followup to additional delta trim options

Unify UBL Command Parsing

Cleanup after recent merges

Having these items randomly (and errorniously) disappear cost me several
hours of work yesterday.

Support up to 5 extruders in Marlin

MCP4728 consistency ... Finish name change