Tags: Dootrix/TinCan.NET

Fix/improve GET /statements query

* Correct 'activity' parameter name
* Implement since/until with .toString
* Bump to 0.0.4.0

Make release notes generic to point online

Fix for version handling in About

* Make ILRS argument name match implementation name for State APIs
* Bump to 0.0.2.0

Make interfaces public for documentation purposes