redis dependency
Merge pull request #2 from nicolas-raoul/patch-1

redis dependency
wrong sql dep in readme
Update README.md
Merge pull request #3 from nicolas-raoul/patch-2

Usage
iplus1d also needs the LD_LIBRARY_PATH thing
tree foreach now passes key and value, plus some more convenience functions
reflect tree api changes
make data/links.csv
tree changes
stopwords for various languages
LINK+QUIT commands, cleanup
handle sentence/link commands
redis stuff
iplus1c sends sentence/link data
make ids 64bit
new method for saving links in redis
code cleanup
command line args
tree: remove function