Blocks (#34)
Blocks (#34)

* Add new block by enter press
Delete current empty block by backspace press

* Fix bug with DeepestNode on empty block

* Fix comments in issues

* Remove console.log

* Fix global var issue

codex-team/codex.editor,codex-team/codex.editor,codex-team/editor.js,codex-team/editor.js,codex-team/codex.editor,codex-team/editor.js