puppetlabs/stdlib 4.x is backwards compatible with 3.x and still tested
on Puppet 2.7. Updating stdlib to 4.x allows modules to use newer
functions without breaking older functionality.
Change-Id: I710daa21f3c1cf5640903243904655817e2a69f2
dependency 'puppetlabs/inifile', '>=1.0.0 <2.0.0'
dependency 'puppetlabs/keystone', '>=4.0.0 <5.0.0'
-dependency 'puppetlabs/stdlib', '>= 3.2.0'
+dependency 'puppetlabs/stdlib', '>=4.0.0 < 5.0.0'
dependency 'stackforge/openstacklib', '>=5.0.0'