fixes for chef 11 warning

when using platform family in attributes, you need to call:

node['platform_family']

otherwise you get handled by the missing_method handler. Also, this
sets default instead of the value on the node for libzmq
Upgrade to 1.1.10, and move to flatjar
CAS auth missing documentation
Merge pull request #106 from retr0h/cas-root-proxy-url

CAS auth missing documentation
Merge pull request #105 from twirrim/1.1.10

Upgrade to 1.1.10, and move to flatjar
Merge pull request #104 from turtlebender/chef-11-fix-2

fixes for chef 11 warning