ebook-tools-0.2.2-bp152.4.23

- Fix a crash when a navPoint in toc.ncx has no navLabel, see
  kde#406116 and https://sourceforge.net/p/ebook-tools/bugs/8/
  * add 0001-Avoid-crash-on-toc-navPoint-without-navLabel.patch
- specfile cleanup, remove %defattr, add LICENSE

- Add baselibs.conf

- Update to 0.2.2 (bnc#845629, kde#325909)
  * Bugfix release, no upstream changelog provided

- xz was added to buildrequires and it was formatted.

- Use GCC visibility, which shrinks the symbol table
  to less than a half of the actually size

- Remove redundant/obsolete tags/sections from specfile
  (cf. packaging guidelines)

- update to 0.2.1:
  installs epub_version.h now
- fix build with libzip

- update to new version 0.2.0
  This release contains major bug fixes.
  Among them crash bugs/security bugs.
  Update recommended

- build fixes