Add spell checking function. It works but there are wonky encoding
issues brought over from hunspell.
Spell check postprocessing
Encapsulate spell checker into class to speed up recurring tasks
s/DICT_URL/DICT_PATH
Fix stray return
Rewrite spell checker to use a simple ngram similarity measure as
hunspell is too intelligent for the hocrinfoaggregator algorithm
Strip trailing newlines from dictionaries
s/NFD/NFC
s/set([])/set()
Add dictionary creation script
Rewrite sym_suggest to run in somewhat constant time
new and fancier mkdict building the revised dictionaries for sym_suggest
Merge remote-tracking branch 'mitagessen/spellcheck' into postcorrect
Removed old abbyy conversion module; will re-implement with hocr tools.
Implemented proper symmetric delete based spellcheck with tests.