Moving to .env + .env.openshift.example and an env fix

Hi ghelleks,

Apologies, I'm still new to Github and did an incomplete pull request. I was running 2 local repo's - one for my openshift instance and one for my github fork, and they weren't entirely in sync. I'm now using the 1 repo with multiple upstreams :) Anyway, the pre_ruby_start script was using the wrong var for the regex conditional.

This pull request also contains the rename from .env.openshift to .env.example.openshift, and changes the pre_ruby_start script to look for .env instead of .env.openshift. Entirely up to you if you want to change your implementation, just my humble suggestion.

Cheers