Update CHANGELOG format
Fix whitespace
Fix README format
Version bump to v1.5.2
Bump devodd release
[COOK-3744] Allow users to specify the action to take on a user via the data_bag

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Update README, CHANGELOG formats and whitespace
Version bump to v1.6.0
Version bump to v1.6.1
Merge branch 'master' of https://github.com/opscode-cookbooks/users
Moved root-authorized-keys recipe to aarp-users cookbook.