Fixed some bugs. Scrolling and colour setting works (normal mode for now).
Now you can fully customize the theme from your ~/.leinit
I'm starting to use the command status line to give feedback to the user now
as well. Added "pwd" so you can see what directory you're in.
Vi mode is probably broken at the moment, but normal mode should be competent
enough to handle editing for the moment. Neither modes support TAB,END,HOME, etc
so I'll get that fixed that in the next commit. The next step is to modularise
it, and push some global variables into editor.*

+ editor:background_colour(r, g, b)
+ editor:text_colour(r, g, b)
+ editor:linenum_colour(r, g, b)
+ editor:status_colour(r, g, b)
+ editor:command_colour(r, g, b)