removed "read -n" dependency
removed "read -n" from the "gg" key combination too
changed "read -e" to "read" in "f" command
Merge branch 'master' into noread
added comments throughout the file
comment on internal variables
started implementing functional cursor movement
remove seemingly useless "reerase" variable
redraw only when necessary
jump by $INT_step when scrolling, to draw less often (unfinished)
some refcractoring in the move() function
finished implementing INT_step option