Move BrooklynAppUnitTestSupport from software/ core/
Extend BrooklynAppUnitTestSupport in core tests
This closes #7
Adds docs for Brooklyn persistence
Fix typo in hyperlink anchor reference
Merge branch PR #37 with fix

This closes PR #37.
This also includes an extra commit which fixes a broken link.
suppress publishing of health if poll period is disabled, fixing race causing intermittent failure in split-brain test
This closes #40