Breaking changes for Spellchecker for TinyMCE 2

The Episerver Spellchecker for TinyMCE 2 includes the following breaking changes:

• The NuGet package for Episerver Spellchecker for TinyMCE 2 (EPiServer.TinyMCESpellChecker.2.x.x) depends on Episerver TinyMCE 2 (EPiServer.CMS.TinyMce 2.x).
• The class SpellCheckerPlugin is removed.
• Use the custom Spellchecker’s plugin.min.js file. 
• Update the class SpellCheckerRequest and move it to namespace EPiServer.TinyMCESpellChecker.Models.
• The classes CheckSpellingResponse and SpellSuggestionResponse have been removed.
• The SpellChecker button is automatically added to TinyMce editor. Previously, this had to be added from the admin view.
• The following new interfaces have been added:
• ISpellCheckerService
  Implement this interface to handle parsing spellchecker requests (the request is in URL encoded format; previously, the request was in JSON format), and getting correct suggestions for a list of misspelled words. The default implementation is SpellCheckerService.
• ISpellCheckerDictionary
  Implement this interface to handle spell checking and getting correct suggestions for a word. The default implementation is SpellCheckerDictionary.