Fix keyword loading to use any whitespace as separator
Fix keyword loading to use any whitespace as separator

Instead of forcing keywords.txt to use tabs, let library developers use spaces too.

me-no-dev/Arduino-1,stickbreaker/Arduino,me-no-dev/Arduino-1,me-no-dev/Arduino-1,me-no-dev/Arduino-1,me-no-dev/Arduino-1,me-no-dev/Arduino-1,stickbreaker/Arduino,me-no-dev/Arduino-1,me-no-dev/Arduino-1,stickbreaker/Arduino,stickbreaker/Arduino,stickbreaker/Arduino,stickbreaker/Arduino,stickbreaker/Arduino