fixes #136
troca no ip/port para rodar a docs
refactoring DataFrame Search Column
used in on checking
set json store riak and enable search
Merge branch 'master' of github.com:avelino/mining

* 'master' of github.com:avelino/mining:
  troca no ip/port para rodar a docs
  fixes #136
Merge pull request #138 from avelino/master

refactoring DataFrame Search Column