[xmonad] Change build directory to ~/.cache/xmonad

4 patches for repository http://code.haskell.org/xmonad: Thu Jun 7 15:16:32 CEST 2012 daniel.trstenjak@gmail.com * Separate source and build directories The source files are still located in '~/.xmonad' and the build files and the xmonad binary are now put into '~/.xmonad_build'. By separating the source and build directories it's easier and nicer to backup and synchronize the source files. Tue Jun 26 20:26:40 CEST 2012 daniel.trstenjak@gmail.com * Add getXMonadDir for backward compatibility Wed Jul 4 19:23:24 CEST 2012 daniel.trstenjak@gmail.com * Change build directory to '~/.cache/xmonad'. Wed Jul 4 19:24:37 CEST 2012 daniel.trstenjak@gmail.com * Add type signature for getXMonadDir