change hashie version dependency to resolve conflict with other gems lik...

Hi I have made some changes in curdbee.gemspec. I was facing gem dependency issue in hashie. I have reported the issue : https://github.com/vesess/curdbee/issues/1 . So I have updated it in different branch and make it work. Please check version_hashie branch : https://github.com/sonianand11/curdbee/tree/version_hashie for changes and update the master repository.


Thank you,
Anand Soni.