Fix position on tooltips, handle drop and more

• Fix position on tooltips! 🎉
• Undeletables support
• Handle drop support
• Updated dependences
  • "draft-js": "0.10.4",
  • "draft-js-custom-styles": "^2.0.4",

webpack 2.2 + fixes on components

• build system is webpack 2.2 compatible
• fixes on issues #63 #35 #23