* Add 'xterm' attribute in py-config using new validation
* Use screen reader mode
* Add `xtermReady` promise to allow users to away xterm.js init
* Guard against initializing a tag twice
* Add tests and doc
* Allow disabling splashscreen
* Move disabled to if statement
* Add docs for py-splashscreen and test for logging
* Add entry to changelog
* Address Jeff's comments
* Rename disabled option to enabled and set to true by default
* Fix logic and tests
* Uncomment test
* Fix test