Update to zathura-0.2.9.

Changes:
zathura-0.2.9 (2014/06/25)
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* Updated dependency version of girara

zathura-0.2.8 (2014/06/24)
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* Better SyncTex support
* Change cursor if mouse is over link
* Colored build output
* Minor bug fixes
* Sphinx documentation
* Updated translations