Caja Update Fixed Long-Standing Bug

Stefano Karapetsas has finally tagged caja-1.8.1 and include the backported fix from master branch that should finally fixed the long standing bug that affected many Linux distributions. Lucky enough, for Slackware, i added a hack which could minimize the possibility of this bug to occur, but still didn't fixed the bug completely. With this update, those hacks can be finally removed and we have a proper fix.

Here are the big changes in 1.8.1:
* Accessibility improvements
* Fixed x-caja-desktop issue
* Removed ConsoleKit usage
* Show trash icon in tree side panel

The updated package has been pushed to the MSB repository generously supported by Darren "Tadgy" Austin and also to the MSB Github.