Removed unused spellcheck stuff
Added skeleton insert heading operation and author listener remove nav points when headings are removed
Added AuthorOperation to insert headings at same or at sub-level, also added ncx framework based on the standard , but with auto-id generation
Added shortcut keys to heading actions
Focus is now returned to document frame after inserting heading
Added Missing jar libs
A bit of cleanup of insert heading operation
Added half finished ncx generation method to EpubUtils (not sure if it is usefull)
Added sample epub
Merge pull request #27 from oleholstandersen/nota-783

Nota 783