Remove extra files
cleanup in-memory event store
Assemblyinfo in all projects
Create api-design.md

Extracted from S-43041
Relocate some WebAPI startup / HttpConfiguration creation code
Update api-design.md

Moved design out of S-42968
consolidate AggregateLoader files
Update some repository signatures and functional cleanup
little more cleanup of in-memory event store
Observable events; a controller to push inbox mappings
Implement in-memory observables
Some cleanup
Gherkin tests
Random items
Remove extraneous step
create OWIN feature fixture; remove existing tests
Tests for Epics
Add items to the test project
Trying new common build tools from Mariano and Matias
Use standard locations for fsharptargets