- Added epublib and dependencies for ebooks read
- Implemented read of epubs from Dropbox
- Added some resources and finished layout of listview
- Pending add them to the list (complete the adapter)

Signed-off-by: Sergio Carrasco Herranz (sergio-portatil)
<scarrascoh@gmail.com>
- Added some change to EBook model:
  * Added cover file (now used the generic icon)
- Now the list of ebooks works fine!
- If user is logged in dropbox, the list is loaded automatically ( login
screen skipped)
- Adding feature 'double click' on the icon to show the ebook cover (not
ready)
- Sorting list by title of book by default
- Cover of book is opened when double clicked (showing generic icon with
icon size)
- App working fine
- Showing the cover of ebook in the list

TODO:
  * Sort list when sort type is changed
  * Create fragment/dialog to change the current folder of dropbox

Signed-off-by: Sergio Carrasco Herranz (sergio-portatil)
<scarrascoh@gmail.com>
- Showing the cover of ebook when is double clicked

TODO:
  * Sort list when sort type is changed
  * Create fragment/dialog to change the current folder of dropbox

Signed-off-by: Sergio Carrasco Herranz (sergio-portatil)
<scarrascoh@gmail.com>
- Spinner for sorting now works fine

TODO:
  * Sort list when sort type is changed
  * Create fragment/dialog to change the current folder of dropbox

Signed-off-by: Sergio Carrasco Herranz (sergio-portatil)
<scarrascoh@gmail.com>
RC1
- Working 100%
- Added dialog for select folder to load with a button
- May have aditional bugs (not tested in depth)

TODO:
  * Fix bug: Icon of ebooks is not shown properly when the list is
ordered by date.
  * Optimize performance
  
See Readme for more info about bugs and new improvements. A lot to do!

Signed-off-by: Sergio Carrasco Herranz (sergio-portatil)
<scarrascoh@gmail.com>