Add an empty docs directory


git-svn-id: http://svn.openstreetmap.org/applications/utils/mod_tile@29444 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
Move man pages out of the debian directory and into the docs directory

These are mostly stub man pages for now



git-svn-id: http://svn.openstreetmap.org/applications/utils/mod_tile@29445 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
Each style can now have its own storage backend / tile_dir



git-svn-id: http://svn.openstreetmap.org/applications/utils/mod_tile@29446 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4