Fixed a couple defines that were not changed or commented out.

Moved SDCARDDETECTINVERTED and SDSLOW to Conditionals.h.
Added U8GLIB_LM6059_AF to define display specific actions.
Added reminder to compile in u8glib

Rename of define to avoid confusion between the controller and the
display which had similar names.

Fixes for some code formatting changes and commenting out the
ADAFRUIT_ST7565 define that was left defined.

Added support for new display type

rework out_bits

Code style and a dangling "else"

Rename gCode to codenum as a consistency

Hide M117 with no LCD

Add gcode_line_error to reduce code size

Rename process_commands to process_next_command

Tweak to fan kick routine

NO_TIMEOUTS and ADVANCED_OK off by default

Allow lsDive to recurse with minimal stack usage

add plan buffer remaining for 'P' and block buffer remaining 'B'

Display unknown XYZ on the LCD as "---"

Use MSG_OK in M105

Use Mendel default for INVERT_Y_DIR