[domains] add missing favicons
[caching] support "no-cache" "node-cache" and "redis" caching engines switchable by config
[caching] list available cache engines in config sample
[cache] support memcached
[cache] support TTL in node-cache and redis
Merge branch 'feature/custom-caching' into develop
[redactor plugin] boilerplate - button and modal window
[redactor plugin] first working version of plugin
[redactor plugin] minor updates
[readme] remove section about styles as they are inserted by iframely.js
[endpoint] return error in endpoints if uri not specified
[debug tool] remove iframely-container styles
[iframely.js] change production endpoint uri
[redactor plugin] move plugin to another repository
Merge branch 'feature/redactor-plugin' into develop
[package.json] update version
Merge branch 'release/0.3.5'