* added JSDocs for almost all extensions
* start adding commands jsdocs
* add jsdocs for rest of extensions
* add jsdocs for Extensions
* add js docs for all extensions
* add more jsdocs
* add js docs for node spec definitions
* refactor: upgrade prosemirror packages to new typescript versions
* refactor: migrate to new typings from prosemirror
* style: fix linting issues
* style: fix linting issues
* style: fix linting issues
* fix(ci): fix build process by reimplement filterTransaction
* fix(extension-test): fix broken build because of wrong output file names
* fix: fix prosemirror-tables not being bundled correctly for ES6
* fix: move to prosemirror-tables-contently until es6 build is working
* fix: fix tests for youtube
* fix: fix youtube test
* fix(demos): fix demos build
* add new addOptions option
* replace defaultOptions with addOptions for all extensions
* replace defaultOptions with addOptions for all demos
* replace defaultOptions with addOptions in docs
* refactoring
* refactoring
* drop object support for addOptions
* fix optional options
* fix tests