[Lxde-i18n] Time to release pcmanfm 0.9.9?

[PCMan <pcm...@gm...>]

Hi list,
I fixed a dnd problem last weekend. So adding bookmarks with dnd
should work now.
The strings are not changed recently and translations are in good status.
I think it's time to have 0.9.9 release.
The remaining and less critical issues can be fixed later before 1.0 release.
If everybody agrees with making a new release, then let's bump version
number and soname and package a new tarball.