set require 'mocha' to 'mocha/api' to get fix deprecated messages
no need for double quotes around powershell.exe
adding a PS_ARGS value
Adding the startup args for powershell.

Surrounding the powershell command with quotes
(Maint) Remove whitespace

Removed whitespace.
Merge branch 'powershell_suggestions'

* powershell_suggestions:
  (Maint) Remove whitespace
  Adding the startup args for powershell.
  adding a PS_ARGS value
  no need for double quotes around powershell.exe
  set require 'mocha' to 'mocha/api' to get fix deprecated messages