upgrade request to 2.40.0

2.41.0 appears to be having some problems with
an incorrect content length setting, and it was
breaking our it tests.

so holding back at 2.40.0 for now
write a test for the api key loader

preparing to upgrade properties-parser
upgrade properties-parser
upgrade moment, node-uuid

coverage looks good on these
Merge pull request #95 from stormpath/update-deps

Update deps