Fix copy temporary folder

This is needed to copy just the contents of temporary folder, instead of the folder itself.
I see. I did test it and the fix did not fully work, so I took the chance to expand on your fix a little, can you take a look at this commit and tell me what do you think? https://github.com/omissis/drupal-ignite/commit/0658aa4b2fab5b04775545ce1c64719c5abde416