Revert "Upd: Fix how clues.txt read in GameData"

This reverts commit 70a63412a2c51ab97b4997ddb20020b714819f1a.
Upd: Font size issue resolved for clues.

See todo for problem description, changelist for more details about new
clues.txt implementation. Clue text is now guaranteed to fit in its
area. Clues with images now automatically scale image and clue text
accordingly. In an image clue, the image is guaranteed at least the
bottom third of the screen area, but this area can be larger with
shorter text.
Upd: New sample clues

Sample clues updated to reflect different ways of entering clues
(autofit vs manual line breaks).
Docs: Update to v0.9.3