title: Ruby RVM issues
body: <p>So I think* RVM may be keeping my Ruby version back artificially. I am getting all sorts of errors in Rails. So I checked the Ruby version I was using. Said it was back a few versions.. so I tried updating to 2.5.0. System said 2.5.0 was already installed? So I checked ruby -v, and got 2.3.3</p>
  
  <p>Here is exactly what my system is telling me: </p>
  
  <pre><code>Johns-MacBook-Pro:PLAYGROUND johnseabolt$ brew install ruby
  Warning: ruby 2.5.0_2 is already installed
  Johns-MacBook-Pro:PLAYGROUND johnseabolt$ ruby -v
  ruby 2.3.3p222 (2016-11-21 revision 56859) [universal.x86_64-darwin17]
  Johns-MacBook-Pro:PLAYGROUND johnseabolt$ 
  </code></pre>
  
  <p>I thought it was an RVM issue maybe? But when I tried to use 2.5.0, I got this: </p>
  
  <pre><code>Johns-MacBook-Pro:PLAYGROUND johnseabolt$ rvm use 2.5.0_2
  Required ruby-2.5.0_2 is not installed.
  To install do: 'rvm install "ruby-2.5.0"'
  </code></pre>
  
  <p>Any ideas what is going on? It's a bit of a pain. </p>