version 2.1.1

things done in version 2.1.1

1. This version is mainly version 2.1.0 with small hotfixes applied. It is not much different in functionality than version 2.1.0, just some exceptional cases are handled better in this version.
   
2. Fully updated API documentation.
   
3. Fully completed demo pages.

Finally this release of s@rdalya is stable enough. Hence I can focus on other projects (one of which is enhancing the Editor.)