Fix creation of guards.
Merge pull request #170 from gmist/fix_guards_create

Fix guards creation
Fix gcloud detection on Windows.
Merge pull request #171 from gmist/fix_win_goodle_cloud

Fix gcloud detection on Windows
Added date support for JSON values
Merge branch 'master' of github.com:gae-init/gae-init

* 'master' of github.com:gae-init/gae-init:
  Fix gcloud detection on Windows.
Merged with gae-init