node_development, moodle_development: fix silly permissions bug

The changes here are probably overkill, but npm-debug.log cannot
possibly be created with wonky permissions now.
carrier_repo: cURL, not wget
sublime_text: drop flimsy start/kill ST3 routine

...when the fix for CHEF-5095 arrives, this _should_ work. It only got
merged 3 days ago, so that could be a few more weeks.