   c.paths = filterByGrep(c.paths, grep) if grep
   c
 
-module.exports = processArgv+module.exports = processArgv


  if isPureObject args
    config = args
  else 
    while arg = args.shift()
      switch arg
        when '-browsers'


  c.browsers = ['firefox'] if c.browsers is undefined or c.browsers.length == 0
  c.reportFormat = 'html' if c.reportFormat is undefined

  throw new Error('--selenium-host isn\'t set correctly') if c.seleniumHost is undefined
  throw new Error('-envs aren\'t set correctly.') if c.envHosts is undefined or _.keys(c.envHosts).length < 1
  throw new Error('-paths aren\'t set correctly.') if c.paths is undefined or c.paths.length is 0
