Code changes for Node 0.10 upgrade

The bulk of this is the change from node-unzip to decompress-zip. decompress-zip only supports extraction to a directory, rather than reading from a zip file stream.

Note that this is set as a merge into the dangoor/node-10-deps branch which has a separate pull request to merge into master. Both of these pull requests rely on https://github.com/adobe/brackets-shell/pull/334.

To @ingorichter