fix windows eoferror
close file
Merge pull request #1 from mozillazg/patch-1

close file
compatible with python-3.3
Merge pull request #4 from erning/python3

compatible with python-3.3
python3
change seg algorithm
Update README.md
seg add zip marshal
fix python2.6
Update README.md
Update README.md
bm25 expression modify
Merge pull request #12 from duanguoxue/master

bm25 expression modify
bump to 0.9.8
关键词提供简单的子串归并
Merge pull request #1 from isnowfy/master

同步原作者的更新