Adds switch to skip server cert ssl validation

Changed get/post so they pass :verify_ssl to RestClient.
This is quite usefull in development when you don't have a valid
certificate.
To change SSL verification, just call ssl_verify with the required mode
(OpenSSL::SSL::VERIFY_PEER or OpenSSL::SSL::VERIFY_NONE).
SSL verification defaults to OpenSSL::SSL::VERIFY_PEER