No hard drive encryption

Some users may not want to encrypt their hard drive, so make
sure they know the option exists to not have to encrypt their
hard drive.
Updated scripts to allow for the use of the --receipts and --gitconfig flags
Merge pull request #241 from mattdbridges/add-fde-tip

Update readme with note about no-fde option
Update to chown staff to be consistent with script.sh. Fixes #152.
Some readme consistency
Alpha sort
adding GitHub Enterprise variables to Boxen config
adding docs for Github Enterprise users
Put a space in this
Merge pull request #274 from mdelagralfo/github-enterprise

Github enterprise config and docs
Fix the line numbers for the variable highlighting.
Merge pull request #281 from sclm/patch-1

Fix the line numbers for the variable highlighting in docs
Fix typo: 1.0.5 -> 1.1.0

Code says `github "java",     "1.1.0"`, but documentation says "1.0.5", so I fixed it.
Merge pull request #283 from adamnbowen/patch-1

Fix typo: 1.0.5 -> 1.1.0
adds source folder for librarian-puppet git source cache
Use the boxen-git-credential for all repositories clones.

This is required since puppet run all the comands as root and the
credential config is only present on the user land.

The lack of this configuration is making clones using https to not
work since the credential is not present for the root.

Closes #286
Merge pull request #305 from rafaelfranca/rm-fix-repository-clone

Use the boxen-git-credential for all repositories clones.
Update line highlighting
Replace dashes by underscores in GitHub usernames
Add note about GitHub usernames with dashes in README