Revert moving parse of command line

to the first line of start function because the move is not necessary
without having the code for using a command line parameter to set Atom to
portable mode.  This belongs on that branch and in that pull request.

src/browser/main.coffee

@@ -12,14 +12,14 @@ yargs = require 'yargs'
 console.log = require 'nslog'
 
 start = ->
-  args = parseCommandLine()
-
   setupAtomHome()
   setupCompileCache()
   return if handleStartupEventWithSquirrel()
 
   # NB: This prevents Win10 from showing dupe items in the taskbar
   app.setAppUserModelId('com.squirrel.atom.atom')
+  
+  args = parseCommandLine()
 
   addPathToOpen = (event, pathToOpen) ->
     event.preventDefault()