TODO.sailfish

As for TODO file, we never delete items from this file, we just
replace a bullet (*) with DONE word. We also add a comments into
this file; comment are marked with double bullet (**).

DONE When downloading book from the network library we should see a progressbar.
DONE Navigating by TOC does not update book view (turning a page back or forth after TOC navigation will get you to the next or previous page of the choosen chapter)
* Decide wether to enable "add book" to choose explicit book or just rely on import from known/given directories.
DONE Make booster work on main.
DONE Strip liblinebreak/libfribidi on release arch.
* Decide wether to move zlibrary under /usr/share/harbour-fbreader/lib/.