Add basic TripleAttributeFinderModule unit tests

- Add initial cut at (incomplete) TripleAttributeFinderModule implementation

Related to: https://www.pivotaltracker.com/story/show/70690150
added test for building eval context
added request IP
renamed initial policies to match their IDs
added logging
added an IT based on the existing admin basic role test
added CND for policy node types
added workspace initializer for creating policy node types, loading initial policies
	and setting up the initial policy for the root node
Merge pull request #9 from awoods/triple-finder

Add basic unit tests for TripleAttributeFinderModule (incomplete)
Merge pull request #11 from gregjan/master

latest installment of xacml goodness