Passing --force-yes to apt-get

Though not preferable in most cases, to downgrade mongodb with apt-get you need to use --force-yes.
Merge pull request #305 from thomascramer/master

Error while downgrading mongodb
Gemfile, Rakefile: update rubocop & chefspec
test: replace deprecated should syntax with expect
Merge pull request #306 from josephholsten/fix-tests

Fix tests
default_spec: add failing test for creating the default log path
adding the ability to add admin and other users to mongodb through recipe, readme updates, kitchen integration tests
Backup agent also use mmsApiKey
updating docs and test to work cross-distros
removing superfluous auth config from default recipe
updating the tests to be less crazy
Bump agents version
Merge pull request #312 from allaire/patch-1

Backup agent also use mmsApiKey
updating recipe / attribute so admin user data only needs to be overridden, and is concat'd onto users array if auth is true
updating read me and kitchen.yml for more instructions
removing redundant code on add_user
Merge pull request #1 from ceejh/add-user-management

adding the ability to add admin and other users to mongodb through recip...
dbconfig: ensure logpath is not set when syslog is active
mongodb_config_helpers: add
config_helper_spec: add failing case for empty string
to_boost_program_options: do not render entries with value: ''