Changed line endings in Gemfile to Unix

Closes https://github.com/rapidftr/tracker/issues/109
Updated infrastructure
Updated Vagrantfile to use Librarian-Chef
Update infrastructure for Docker
Merge pull request #671 from RapidRailsGirls/unix_line_endings

Changed line endings in Gemfile to Unix
Updated Vagrant and infrastructure to use latest Chef and plugins
Convert Windows line ending to Unix line endings
Merge pull request #672 from sferik/dos2unix

Convert Windows line ending to Unix line endings
rapidftr/tracker#55 @ctumwebaze @andreweskeclarke Addin forms, form pages, and making children form seeded correctly.  Fixing the many tests broken by this change.
Merge branch 'master' of https://github.com/rapidftr/RapidFTR