Revised Pillar Example

Revising example pillar to add a minimal required values and a full
list of available values
Modified Private Keys and Sudoers

Changed Private keys to have content within pillar rather than the salt
file repository.

Changes sudoers entry to get values from pillar rather than assuming
all sudo users want root.
yaml mistype

had the prime group and ssh keys values as another dict. fixed.
change pub key to use user_group

if you set an alternate prime_group this would break, replaced {{ name
}} with {{ user_group }}
Merge pull request #12 from madflojo/master

Cleaned up Documentation and User state