PR 79: Update to Berkshelf 3

Signed-off-by: gmiranda23 <gmiranda@opscode.com>
Version bump to 1.6.8
Version bump to 1.6.9 (for development)
PR 37: check that apparmor exists before enabling
PR 45: statistics logging switch

Signed-off-by: gmiranda23 <gmiranda@opscode.com>
PR 57: Move include statement on helper outside windows? check

Signed-off-by: gmiranda23 <gmiranda@opscode.com>
PR 74: Remove is_server from example

Signed-off-by: gmiranda23 <gmiranda@opscode.com>
Merge pull request #2 from gmiranda23/master

pull 1.6.9