THRIFT-372. rb: Ruby lib doesn't rescue properly from lack of native_thrift extension

This patch adds a new thrift/thrift_native.rb which should be the require point for application users. It also removes some unnecessary code from a few files and cleans up requires in some specs.



git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@758794 13f79535-47bb-0310-9956-ffa450edef68
4 files changed