Update Modulepath for Git Workflow

Previously, the modulepath used in the fundamentals module for the
Git workflow pointed to the user's repository directory and not the
'modules' directory contained therein.  Because of this, Puppet couldn't
find any classes.  This commit fixes that.
Merge pull request #89 from glarizza/git_workflow/modulepath_fix

Update Modulepath for Git Workflow
Only manages pe-httpd on 2.7.0

Addresses #20492 but we should revisit soon.