1.0.2 update

Small update:

• Added a cursor at the end of text, for clarity.
• Redid hint system. (You are now pointed to the next "intended" unsolved puzzle, rather than the one intended to go immediately before this one.)
  • One of the last puzzles now has two hints available, rather than one.
• Pressing up/down now lets you scroll up to the last command you ran. (But not the full history, only the last!)