[docs] Updating docs to get rid of the "Control" term, replacing it with the "App" one
[demo] Updating demo pages to get rid of the "Control" term, replacing it with the "App" one
- update JsDuck from 5.0.0beta2 to beta3;
- move icons to a separate dir and employ JsDuck :icon field for custom tag;
- add default parameters and return for renderer tags;
- merge default parameters for event tag with the explicitly specified ones.
@echo_template tag implemented, it parses HTML template and generates extra @echo_renderer tags
Hide Templates section and tags
[docs] Control => App (on behalf of Andrew)