* remove memoization
* update to flash 1.0.2; turn on threading
* stand-alone helper routines for array slicing
* fix issue #405
* reset diffexp state when world changes
* performance work in dimension creation; fix world slicing bug
* update tests to match new state mgmt api
* update flask
* do not make dimensions for useless annotations
* update test to match optimizations
* Create Release_Validation_Recipe.md
* nameCreators test and better error handling
* add test for createObsDimensionMap
* add last set of tests for world module
First cut at test for stateManager/world. Test data for REST responses factored out into separate file for shared use by Universe and World tests. Also cleaned up some debugging code.