refactoring SearchDaoImpl
update searchDao
review
fix test
Update README.md
Update README.md
issue46
issue46
search rates improvements
Merge remote-tracking branch 'origin/master'
Merge branch 'master' of https://github.com/devstarter/ii into HEAD
test Issue46
generateKey changed
Merge branch 'issue44' of https://github.com/devstarter/ii into issue46
test44