Added epublib. Created apub-fragment.

When an epub from the filesystem is shared or sent
to the app then the main activity will send the book
to the epub fragment, load the epub fragment and the
epub fragment will be used to show the epub.

The user should be able to set a cursor in the text
to mark the position from where to start spritzing.
(this is the alternative to simply spritzing the text
in the epub right away without any user input on where
to start spritzing..)

TODO: (1) extract text from book.
      (2) view pages of text in epub fragment
      (3) cursor on text and play to spritz button
      (4) open spritz fragment with some "lazy loaded"
          text or pages.. is there a a Spritz source
          compatible with epublib resource objects.
Added webview for epub. Entire book is extracted and the xml

is loaded into the webview. TODO: select location in text
with cursor and add play button
Added jsoup html parse. Spritzing epub.

Share epub with app, and press play. Spritzing
will run over the entire book. TODO: add a selection
ui from which the user can select the starting point
where to start spritzing.
merge remote with local

Merge branch 'master' of github.com:oulrich1/PeruseWithSpritz