Allow global privileges to be set on mysql users

- Add the ability to set global permissions (EE requires super)
- RE: https://github.com/opscode-cookbooks/database/issues/84, due to resource cloning, it's very tricky to set global privileges if you don't override the username of each resource and give it a unique name.
Pin back to chef-client 11.16.4
Fix for newer rubocop rules
Since this runs omnibus updater, pin back chef-client there too
Merge pull request #74 from rackspace-cookbooks/globalpriv_martinb3

Allow global privileges to be set on mysql users
Bump version
Update changelog
Bump for dev
Don't break on nil global_privs

Fixed a logic error in mysql_database_user calls if a privilege value is nil.
Merge pull request #75 from rackspace-cookbooks/fix_privs_martinb3

Don't break on nil global_privs
Bump for dev
Pinned database cookbook to address https://github.com/opscode/chef/pull/2631
Merge pull request #77 from rackspace-cookbooks/jujugrrr-database-pinning

Pinned database cookbook to address https://github.com/opscode/chef/pull...
Release 0.0.34
Revert "Release 0.0.34"

This reverts commit 47d23823c9a6a9b347be44f7c551af00ab0689b7.
Release 0.0.33
Bump for dev
lock mysql recipe to 5.x
Merge pull request #78 from rackspace-cookbooks/mysql_lock

lock mysql recipe to 5.x
Releasing this version 0.0.35