Update EXKernel so that it can handle no RCT prefix in module names
Update EXKernel so that it can handle no RCT prefix in module names

fbshipit-source-id: eef8147

jolicloud/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent,jolicloud/exponent,exponentjs/exponent,exponentjs/exponent,jolicloud/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponentjs/exponent,jolicloud/exponent,jolicloud/exponent,exponentjs/exponent,exponentjs/exponent,jolicloud/exponent,jolicloud/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent,jolicloud/exponent,jolicloud/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent