composition hints algorithm rewrite

[stevenhao]

the Hints component is out of date and uses a very small, unscored wordlist. to change this:

• support user-uploading scored wordlists (cache these client-side but not in db b.c. copyright)
• add a default (can be very shitty, for now) scored wordlist (e.g., we can assign random or uniform scores to all the words in the current wordlist)
• rewrite the algorithm for ranking partially filled grids to use scored entries
• add an algorithm to auto-fill-grid
  • should be aware of the no-repeated-words rule

GUI:

• support double-clicking suggested entries to fill (in pencil)
• make auto-fill-grid be in pencil?
• clear all pencil / commit all pencil buttons [do other tools have this?]
• highlight in red all problem entries, i.e. those that are incomplete and have no suitable matches/are too long (crossfire has this, i think)

[stevenhao]

closing for now, composition is probs not going to be a main focus in the near future