Add the NTP profile to jenkins-infra

Add the NTP profile to the puppetmaster-role.
Configuration is taken from hiera.

[FIXED INFRA-24]
Ensure that the base profile is included in our new roles
Merge pull request #22 from rtyler/ntp-fixes

Ntp fixes
Allow passwordless sudo for the sudo group
Ignore more vagrant related files
Merge remote-tracking branch 'upstream/staging' into HEAD