Adding cmgerrit by Wes to the Enviroment to globalize it. Also modded to...

Adding cmgerrit by Wes to the Enviroment to globalize it. Also modded to prevent empty strings in prompt, as well as a usage prompt, and making sure they enter all proper variables.

cmgerrit: add readme text at the top, switch to else if, add echo of transaction

cmgerrit: #blamewes