Slate editor (#38)

* WIP: Slate editor

* WIP

* Focus at start / end working

* ah ha

* Super basic floating toolbar

* Nested list editing

* Pulling more logic into plugins

* inline code markdown

* Backspace at end of code block should remove mark

* Ensure there is always an empty line at editor end

* Add keyboard shortcuts for bold, italic, underline

* Add strikethrough shortcode and toolbar

* Toolbar to declarative
Fixed paragraph styling
Removed unused stuffs

* Super basic link editing

* Split Toolbar, now possible to edit and remove links

* Add new link to selection from toolbar working

* Ensure toolbar doesn't extend off screen

* Fix minor js issues, disable formatting of document title

* Boom, icons

* Remove codemirror, fix MD parsing issues

* CMD+S now saves inplace

* Add --- shortcut for horizontal rule

* Improved styling for link editor

* Add header anchors in readOnly

* More readable core text color

* Restored image file uploading 🎉

* Add support for inline md syntax, ** __ etc

* Centered

* Flooooow

* Checklist support

* Upgrade edit list plugin

* Finally. Allow keydown within rich textarea

* Update Markdown serializer

* Cleanup, remove async editor loading

* Editor > MarkdownEditor
Fixed unsaved changes warning triggered when all changes are saved

* MOAR typing

* Combine edit and view

* Fixed checkboxes still editable in readOnly

* wip

* Breadcrumb
Restored scroll

* Move document scene actions to menu

* Added: Support for code blocks, syntax highlighting

* Cleanup

*  > styled component

* Prevent CMD+Enter from adding linebreak

* Show image uploading in layout activity indicator

* Upgrade editor deps

* Improve link toolbar. Only one scenario where it's not working now

package.json

@@ -77,7 +77,6 @@
     "bcrypt": "^0.8.7",
     "bugsnag": "^1.7.0",
     "classnames": "2.2.3",
-    "codemirror": "^5.25.2",
     "cross-env": "1.0.7",
     "css-loader": "0.23.1",
     "debug": "2.2.0",
@@ -137,21 +136,30 @@
     "raw-loader": "^0.5.1",
     "react": "15.3.2",
     "react-addons-css-transition-group": "15.3.2",
-    "react-codemirror": "0.2.6",
     "react-dom": "15.3.2",
     "react-dropzone": "3.6.0",
     "react-helmet": "3.1.0",
-    "react-keydown": "^1.6.1",
+    "react-keydown": "^1.7.3",
+    "react-portal": "^3.1.0",
     "react-router": "2.8.0",
     "redis": "^2.6.2",
     "redis-lock": "^0.1.0",
     "reflexbox": "^2.2.3",
     "rimraf": "^2.5.4",
-    "safestart": "0.8.0",
+    "safestart": "1.1.0",
     "sass-loader": "4.0.0",
     "sequelize": "3.24.1",
     "sequelize-cli": "2.4.0",
     "sequelize-encrypted": "0.1.0",
+    "slate": "^0.19.30",
+    "slate-collapse-on-escape": "^0.2.1",
+    "slate-drop-or-paste-images": "^0.5.0",
+    "slate-edit-code": "^0.10.2",
+    "slate-edit-list": "^0.7.0",
+    "slate-markdown-serializer": "tommoor/slate-markdown-serializer",
+    "slate-paste-linkify": "^0.2.1",
+    "slate-prism": "^0.2.2",
+    "slate-trailing-block": "^0.2.4",
     "slug": "0.9.1",
     "string-hash": "^1.1.0",
     "style-loader": "0.13.0",