Merge pull request #6181 from thinkyhead/rc_ubl_further_fixes

.travis.yml

Marlin/G26_Mesh_Validation_Tool.cpp

Marlin/Marlin.h

Marlin/Marlin_main.cpp

Marlin/SanityCheck.h

Marlin/UBL.h

Marlin/UBL_Bed_Leveling.cpp

Marlin/UBL_G29.cpp

Marlin/UBL_line_to_destination.cpp

Marlin/endstop_interrupts.h

Marlin/macros.h

Marlin/mesh_bed_leveling.h

Marlin/pinsDebug.h

Marlin/planner.cpp

Marlin/temperature.cpp

Marlin/twibus.cpp

Marlin/ultralcd.cpp

Marlin/ultralcd_impl_DOGM.h

Marlin/ultralcd_impl_HD44780.h

Marlin/utility.cpp