Updates README.
Adds .gitignore.
Adds initial haiku scripts.

`load_gcide.rb` will process GCIDE `CIDE.*` files and build a
`words.sqlite3` DB for use by `find_haiku.rb`.

`find_haiku.rb` will parse a .txt or .pdf file, split it roughly
into English sentences, and look for haiku syllable patterns, dumping
hits to the console.